Execution Standard of Seamless Steel Pipes

A seamless steel pipe, as the name suggests, is a steel pipe without a seam or a weld-joint. Seamless pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders and masses of small solids.

It can also be used for structural applications; hollow pipe is far stiffer per unit weight than solid members. Seamless pipe is thought to be able to withstand higher pressure, higher temperatures, higher mechanical stress and a corrosive atmosphere. It can be found in a wide range of applications such as in oil and gas, refinery, petrochemical, chemical, fertilizer, power, automotive, bearing, mechanical and structural.

The production of our seamless pipe is tightly regulated and all of the steel pipes we stock have been fully tested to international standards to ensure we only supply the highest quality products.

Standards of Seamless pipes

ASTM seamless pipe - Execution Standard of Seamless Steel Pipes

API Spec 5CT API Spec 5L ASTM/ASME GS/ DIN JIS
API SPEC 5L/ 5CT

Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells.

Product name Executive standard Dimension (mm) Steel code/ Steel grade
Casting API 5CT 114~219 x 5.2~22.2 J55, K55, N80, L80, P110
Tubing API 5CT 48.3~114.3 x 3.2~16 J55, K55, N80, L80, H40
Casting API 5L 10.3~1200 x1.0~120 A, B, X42, X46, X52, PSL1 / PSL2

API Spec 5CT – Specification for Casing and Tubing

API Spec 5CT – Specification 5CT/ISO 11960, Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells.
API SPEC 5CT steel pipes - Execution Standard of Seamless Steel Pipes

API SPEC 5CT seamless steel tube

J55 and K55 Oil Casing in API 5CT - Execution Standard of Seamless Steel Pipes

J55 and K55 Oil Casing in API 5CT

API Spec 5CT Casing pipe - Execution Standard of Seamless Steel Pipes

API Spec 5CT Casing pipe

Scope:

This Standard specifies the technical delivery conditions for steel pipes (casing, tubing and pup joints), coupling stock, coupling material and accessory material and establishes requirements for three Product Specification Levels (PSL-1, PSL-2, PSL-3).
The requirements for PSL-1 are the basis of this Standard.
The requirements that define different levels of standard technical requirements for PSL-2 and PSL-3, for all Grades except H-40, L-80 9Cr and C110, are contained in Annex H.
Peotroleum and natureal gas industies – Steel pipes for use as casing or tubing for wells.
Standard: API SPEC 5CT

API 5CT pipe Size range(mm):
  • Outer Dimensions: 6.0mm – 219.0mm
  • Wall Thickness: 1.0mm – 30 mm
  • Length: max 12000mm

Application: gas, water and oil transportation in both oil and natural gas .

The main steel grade of API 5CT:
  • API 5CT J55
  • API 5CT K55
  • API 5CT N80
  • API 5CT L80
  • API 5CT P110

Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements .

This International Standard is applicable to the following connections in accordance with ISO 10422 or API Spec 5B:

  • short round thread casing (STC);
  • long round thread casing (LC);
  • buttress thread casing (BC);
  • extreme-line casing (XC);
  • non-upset tubing (NU);
  • external upset tubing (EU);
  • integral joint tubing (IJ).

For such connections, this International Standard specifies the technical delivery conditions for couplings and thread protection.

For pipes covered by this International Standard, the sizes, masses, wall thicknesses, grades and applicable end finishes are defined.

This International Standard may also be applied to tubulars with connections not covered by ISO/API standards.

2. Chemical Composition
Grade C≤ Si≤ Mn≤ P≤ S≤ Cr≤ Ni≤ Cu≤ Mo≤ V≤ Als≤
API 5CT J55 0.34-0.39 0.20-0.35 1.25-1.50 0.020 0.015 0.15 0.20 0.20 / / 0.020
API 5CT  K55 0.34-0.39 0.20-0.35 1.25-1.50 0.020 0.015 0.15 0.20 0.20 / / 0.020
API 5CT N80 0.34-0.38 0.20-0.35 1.45-1.70 0.020 0.015 0.15 / / / 0.11-0.16 0.020
API 5CT  L80 0.15-0.22 1.00 0.25-1.00 0.020 0.010 12.0-14.0 0.20 0.20 / / 0.020
API 5CT J P110 0.26-035 0.17-0.37 0.40-0.70 0.020 0.010 0.80-1.10 0.20 0.20 0.15-0.25 0.08 0.020
Mechanical Properties of API 5CT
Steel Grade Yield Strength (Mpa) Tensile Strength (Mpa)
API 5CT J55 379-552 ≥517
API 5CT K55 ≥655 ≥517
API 5CT N80 552-758 ≥689
API 5CT L80 552-655 ≥655
API 5CT P110 758-965 ≥862
API Spec 5CT standard replaced by:
  • API Spec 5CT – Specification 5CT/ISO 11960, Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells
  • This product references:
  • API Spec 5B – Specification for Threading, Gauging, and Thread Inspection of Casing, Tubing, and Line Pipe Threads (US Customary Units) (Includes March 2004 Addendum)
  • ISO 10422:1993 – Petroleum and natural gas-industries; threading, gauging, and thread inspection of casing, tubing and line pipe threads; specification
  • This product replaces:
  • API 5CT – Specification for Casing and Tubing (U.S. Customary Units)
  • ISO 11960 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 5, Casing, tubing and drill pipe.

API SPEC 5L Standard Specification for Line Pipe

API SPEC 5L is a international standard specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.

The API 5L covers seamless and welded steel line pipe. This is steel pipe for pipeline transportation systems in the petroleum and natural gas industries. API 5L is suitable for conveying gas, water, and oil. 

lsaw x70 2 - Execution Standard of Seamless Steel Pipes
API 5L LSAW Pipe
seamless api 5l - Execution Standard of Seamless Steel Pipes
Tubing and Casing, Line Pipes
ssaw api 5l little - Execution Standard of Seamless Steel Pipes
API 5L SSAW Pipe
 

Sizes 
Nominal Pipe Size 2″ to 24″ O.D.
Wall Thickness – Schedule 10 through 160, STD, XS, XXS. 
Standard : API 5L 
Product Specification Level: PSL-2 
Steel grade:
 X52 

Chemical Properties %
PSL C, a    Mna P        S  Si V Nb

Ti

Other CEIIW CEpcm
1 0.24 1.40 0.025 0.015 0.45 0.10 0.05 0.04 b,c .043 0.025
2 0.28 1.40 0.03 0.03 b b b
Mechanical Properties        
PSL API 5L PSL-1 X52 API 5L PSL-2 X52
Tensile strength, min /max, psi (MPa) 66,700(460)/ n/a 66,700 / 110,200
Yield strength, min /max, psi (MPa) 52,000 (300)/n/a 52,000 / 76,900


a. For each reduction of 0.01% below the specified maximum concentration for carbon, an increase of 0.05% above the specified maximum concentration for manganese is permissible, up to a maximum of 1.65% for > grades B, but < X52; up to a maximum of 1.75% for grades >X52, but < X70; and up to a maximum of 2.00% for grade X70
b. The sum of the niobium, vanadium, and titanium concentrations shall be < 0.06%.
c. Unless otherwise agreed, 0.50% maximum for copper, 0.30% maximum for nickel, 0.30% maximum for chromium, and 0.12% maximum for molybdenum.
API 5L X60 PSL 1 grade designations come from API Spec 5L Specification for Line Pipe (

API 5L PSL1 SEAMLESS CARBON STEEL PIPE 28 INCH 12M

). Stronger grades have the designation X followed by the specified minimum yield strength of the pipe steel, measured in kilopounds per square inch (abbreviated ksi). Standard Line Pipe has grade designation A and B.

Select differences between PSL 1 and PSL 2:
 Data

PSL1

PSL2

CVN impact (Charpy) testing

None required

Required for all grades

Nondestructive inspection of seamless

Only when purchaser specifies   SR4

SR4 mandatory

Certification

Certificates when specified per SR15

Certificates (SR 15.1) mandatory

Traceability

Traceable only until all tests are passed, unless SR15 is specified

Traceable after completion of tests (SR 15.2) mandatory

Hydrostatic Test

Required    

Required

Note: 
This is summarized information from API Specification 5L. Please refer to the specific Standard or Specification or contact us for more details.

1. Scope:

1.1 This specification covers sesamless and welded steel line pipe. It includes standard-weight and extra-strong threaded line pipe. It includes standard-weight and extra-strong threaded line pipe; and standard-weight plain-end,regular-weight plain-end, special plain-end, extra-strong plain-end, special plain-end, extra-strong plain-end pipe; as as well as bell and spigot and through-the-flowline(TFL) pipe.The purpose of this specification is to provide standards for pipe suitable for use in conveying gas, water, and oil in both the oil and natural gas industries.1.2 Dimensional requirements on threads and thread gauges, stipulations on gauging practice, gauge specifications and certification, as well as instruments and methods for inspecition of threads are given in API Standard 5B and are applicable to products covered by this specification.Grades covered by this specification are A25, A, B, X42, X46, X52, X56, X60, X65, X70, and X80 and grades intermediate to the Grades X42 and higher listed (see note). The chemical composition and mechanical properties of intermediate grades that are subject to agreement between the purchaser and the menufacturer must be consistent with the corresponding requirements for the grades to which the material is intermediate.
Note :The grade disignations used herein for Grades A and B do not include reference to the specified minimum yield strength. Other grade designations used herein comprise the letter A or X followed by the first two digits of the specified minimum yield strength.1.3 Pipe manufactured as Grade X60 or higher shall not be substituted for pipe ordered for Grade X52 or lower with-out purchaser approval.1.4 Although plain-end line pipe meeting this specifiecation is primarily intended for field makeup by circumferential welding, the manufacturer will not assume responsibility for field welding.1.5 For regular-weight and special plain-end pipe(special weight) whown in Tables 6A, 6B, and 6C and for standard weight threaded pipe larger than nominal size 12, the size designations used herein are outside diameter sizes. For all other pipe, the size designations are nominal pipe sizes. In the text of this specification, pipe size limits(or size ranges)are outside diameter sizes except where stated to be nominal. These outside diameter size limits and ranges also apply to the corresponding nominal sizes.1.6 Class Ⅱ steel is rephosphorized and problbly has better threading properties than Class I. Because Class Ⅱ has higher chemical properties than Class I, it may be somewhat more difficult to bend.1.7 U.S. customary units are used in this specification; metric(SI) units are shown in parenthese in the text and in many tables. See Appendix J for specific information about rounding procedures and conversion factors.

API 5L B X42. X46. X52. X60 .X65. X70. X80. X100 Line Pipe (PSL1. PSL2)
API 2B Fabrication of Structure Steel Pipe
ASTM A134 Pipe, Steel, Electric-Fusion(Arc)-Welded (Size NPS 16 and over)
ASTM A139 A, B Electric-Fusion(Arc)-Welded Steel Pipe (Size NPS 4 and over)
ASTM A252 1, 2, 3 Welded and Seamless Steel Pipe Piles
ASTM A671 All Electric-Fusion-Welded Steel Pipe for Atmospheric & Low Temperature
ASTM A672 All Electric-Fusion-Welded Steel Pipe for High-Pressure Service 
at Moderate Temperature
ASTM A691 Carbon and Alloy Steel Pipe, Electric-Fusion Welded 
for High Pressure Service at High Temperatures
JIS G 3444 STK 
290,400,490,500,540
Carbon Steel Tubes for General Structural Purpose
JIS G 3457 STPY 400 Arc Welded Carbon Steel Pipe
KS D 3583 SPW 400 Arc Welded Carbon Steel Pipe
KS D 3566 STK 
290,400,490,500,540
Carbon Steel Tubes for General Structural Purpose
2. Chemical Composition
Grade

Mfg. Process

Chemical composition (%)

C
Si
Mn
P
S
Ni
Cr
Mo
Others
A25C1 Ⅰ
S
0.21Max
0.30~0.60
0.045Max
0.06Max
A25C1 Ⅱ
0.21Max
0.30~0.60
0.045~0.80
0.06Max
A
0.21Ma2
0.90Max
0.04Max
0.05Max
B
0.27Max
1.15Max
0.04Max
0.05Max
X42(Non-expanded)
0.29Max
1.25Max
0.04Max
0.05Max
X42(Cold expanded)
0.29Max
1.25Max
0.04Max
0.05Max
X46(Non expanded)
0.31Max
1.35Max
0.04Max
0.05Max
X46(Cold expanded)
0.29Max
1.25Max
0.04Max
0.05Max
X52(Non expanded)
0.31Max
1.35Max
0.04Max
0.05Max
X52(Cold expanded)
0.29Max
1.25Max
0.04Max
0.05Max
X56
0.26Max
1.35Max
0.05Max
Cb 0.005Max

V 0.005Max

Ti 0.005Max

X60
0.26Max
1.35Max
0.05Max
Cb 0.005Max

V 0.005Max

Ti 0.005Max

X65
X70
0.045Max
X80
0.045~0.080
A25C1 Ⅰ
W
0.21Max
0.04Max
0.06Max
A25C1 Ⅱ
0.21Max
0.04Max
0.06Max
A
0.21Max
0.04Max
0.05Max
B
0.26Max
0.04Max
0.05Max
X42
0.28Max
0.04Max
0.05Max
X46(Non expanded)
0.30Max
0.04Max
0.05Max
X46(Cold expanded)
0.28Max
0.04Max
0.05Max
X52(Non expanded)
0.30Max
0.04Max
0.05Max
X52(Cold expanded)
0.28Max
0.04Max
0.05Max
X56
0.26Max
0.04Max
0.05Max
X60
0.26Max
0.04Max
0.05Max
X65
0.26Max
0.04Max
0.05Max
X70
0.23Max
0.04Max
0.05Max
X80
0.18Max
0.030Max
0.018Max
3. Mechanical Properties
Grade
Tensile Test MPa or N/mm2

Remaks (Similar to JIS)

Possibility Temperature

Min Yield point

Tensile Strength

A25C1 Ⅰ
172
310Min
A25C1 Ⅱ
1772
310Min
A
207
331Min
(STPG370)
B
241
413Min
(STPG410)
X42(Non-expanded)
289
413Min
X42(Cold expanded)
289
413Min
X46(Non expanded)
317
434Min
X46(Cold expanded)
317
413Min
X52(Non expanded)
358
455Min
X52(Cold expanded)
358
455Min
X56
386
489Min
X60
413
517Min
X65
448
530Min
X70
482
565Min
X80
551
620~827
A25C1 Ⅰ
172
310Min
A25C1 Ⅱ
172
310Min
A
207
331Min
B
241
413Min
X42
289
413Min
X46(Non expanded)
289
413Min
X46(Cold expanded)
317
434Min
X52(Non expanded)
358
455Min
X52(Cold expanded)
358
455Min
X56
386
489Min
X60
413
517Min
X65
448
530Min
X70
482
565Min
X80
551
620Min

ANSI / ASME B36.10M-1985

TABLE 1 :APPLICABLE PIPE SPECIFICATIONS

TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 1 (1/8″~2″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 2 (21/2″~4″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 3 (4″~6″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 4 (8″10″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 5 (12″~14″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 6 (14″:~18″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 7 (18″~20″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 8 (20″~24″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 9 (24″~28″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 10 (28″~32″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 11 (32″~36″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 12 (36″~40″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 13 (42″~46″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 14 (46″~52″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 15 (56″~64″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 16 (64″~76″)
TABLE 2 :DIMENSIONS AND WEIGHTS OF WELDED AND SEAMLESS WROUGHT STEEL PIPE 17 (80″)

ASTM / ASME

American Society for Testing and Materials(ASTM), American Society of Mechanical Engineers (ASME)

Product name Executive standard Dimension (mm) Steel code/ Steel grade
Black and Hot-dipped Zinc-coated Steel Pipes Seamless ASTM A53 0.3~1200 x 1.0~150 GR.A, GR.B, GR.C
Seamless Carbon Steel for High Temperature Service ASTM A106 10.3~1200 x 1.0~150 GR.B, GR.C
Seamless Cold-drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes ASTM A179 10.3~426 x 1.0~36 Low Carbon Steel
Seamless Carbon Steel Boiler Tubes for High Pressure ASTM A192 10.3~426 x 1.0~36 Low Carbon Steel
Seamless Cold-drawn Intermediate Alloy Steel Heat-exchanger and Condenser Tubes ASTM A199 10.3~426 x 1.0~36 T5, T22
Seamless Medium-carbon Steel Boiler and Superheater Tubes ASTM A210 10.3~426 x 1.0~36 A1, C
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger Tubes ASTM A213 10.3~426 x 1.0~36 T5, T9, T11, T12, T22, T91
Seamless Carbon and Alloy Steel for Mechanical Tubing ASTM A333 1/4″~42″ x SCH20~XXS Gr1, Gr3, Gr6
Seamless Cold-drawn Carbon Steel Feedwater Heater Tubes ASTM A556 10.3~426 x 1.0~36 A2, B2


ASTM A252 Standard Specification

ASTM A252 standard covers nominal wall cylindrical steel pipe piles in which the steel cylinder acts as a permanent load-carrying member or as a shell to form cast-in-place concrete piles.

Each welded pile shall be made by seamless, electric resistance welding, flash welding or fusion welding with longitudinal, helical-butt, or helical-lap seams.

This standard is issued under the fixed designation A 252; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon ( ュ) indicates an editorial change since the last revision or reapproval.
This specification has been approved for use by agencies of the Department of Defense. Consult the DoD Index of Specifications and Standards for specific year of issue which has been adopted by the Department of Defense.

1. Scope:

1.1 This specification covers nominal (average)wall steel pipe piles of cylindrical shape and applies to pipe in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast-in place concrete piles.1.2 The values stated in inch-pound units are to be regarded as the standard.1.3 The following precautionary caveat pertains only to the test method portion, Section 16 of this specification. This standard does not purport to address all of the safery problems, if any, associated with its use. It is the responsi-bility of the user of this standard to establish applicability of regulatory limitations prior to use.

JIS Number and Corrensponding Foreign Standards
API 5L B X42. X46. X52. X60 .X65. X70. X80. X100 Line Pipe (PSL1. PSL2)
API 2B Fabrication of Structure Steel Pipe
ASTM A134 Pipe, Steel, Electric-Fusion(Arc)-Welded (Size NPS 16 and over)
ASTM A139 A, B Electric-Fusion(Arc)-Welded Steel Pipe (Size NPS 4 and over)
ASTM A252 1, 2, 3 Welded and Seamless Steel Pipe Piles
ASTM A671 All Electric-Fusion-Welded Steel Pipe for Atmospheric & Low Temperature
ASTM A672 All Electric-Fusion-Welded Steel Pipe for High-Pressure Service 
at Moderate Temperature
ASTM A691 Carbon and Alloy Steel Pipe, Electric-Fusion Welded 
for High Pressure Service at High Temperatures
JIS G 3444 STK 
290,400,490,500,540
Carbon Steel Tubes for General Structural Purpose
JIS G 3457 STPY 400 Arc Welded Carbon Steel Pipe
KS D 3583 SPW 400 Arc Welded Carbon Steel Pipe
KS D 3566 STK 
290,400,490,500,540
Carbon Steel Tubes for General Structural Purpose
ASTM A671 TABLE 1 Plate Specifications
Pipe Grade Type of Steel ASTM Specification
No. Grade
CA 55 plain carbon A 285/A 285M C
CB 60 plain carbon, killed A 515/A 515M 60
CB 65 plain carbon, killed A 515/A 515M 65
CB 70 plain carbon, killed A 515/A 515M 70
CC 60 plain carbon, killed, fine grain A 516/A 516M 60
CC 65 plain carbon, killed, fine grain A 516/A 516M 65
CC 70 plain carbon, killed, fine grain A 516/A 516M 70
CD 70 manganese-silicon, normalized A 537/A 537M 1
CD 80 manganese-silicon, quenched and tempered A 537/A 537M 2
CE 55 plain carbon A 442/A 442M 55
CE 60 plain carbon A 442/A 442M 60
CF 65 nickel steel A 203/A 203M A
CF 70 nickel steel A 203/A 203M B
CF 66 nickel steel A 203/A 203M D
CF 71 nickel steel A 203/A 203M E
CJ 101 alloy steel, quenched and tempered A 517/A 517M A
CJ 102 alloy steel, quenched and tempered A 517/A 517M B
CJ 103 alloy steel, quenched and tempered A 517/A 517M C
CJ 104 alloy steel, quenched and tempered A 517/A 517M D
CJ 105 alloy steel, quenched and tempered A 517/A 517M E
CJ 106 alloy steel, quenched and tempered A 517/A 517M F
CJ 107 alloy steel, quenched and tempered A 517/A 517M G
CJ 108 alloy steel, quenched and tempered A 517/A 517M H
CJ 109 alloy steel, quenched and tempered A 517/A 517M J
CJ 110 alloy steel, quenched and tempered A 517/A 517M K
CJ 111 alloy steel, quenched and tempered A 517/A 517M L
CJ 112 alloy steel, quenched and tempered A 517/A 517M M
CJ 113 alloy steel, quenched and tempered A 517/A 517M P
CK 75 carbon-manganese-silicon A 299/A 299M
CP 65 alloy steel, age hardening, nomalized and precipitation heat treated A 736/A 736M 2
CP 75 alloy steel, age hardening, nomalized and precipitation heat treated A 736/A 736M 3
ASTM A672 TABLE 1 Plate Specifications
Pipe Grade Type of Steel ASTM Specification
No. Grade
A45 plain carbon A 285 A
A50 plain carbon A 285 B
A65 plain carbon A 285 C
B55 plain carbon, killed A 515 55
B60 plain carbon, killed A 515 60
B65 plain carbon, killed A 515 65
B70 plain carbon, killed A 515 70
C55 plain carbon, killed, fine grain A 516 55
C60 plain carbon, killed, fine grain A 516 60
C65 plain carbon, killed, fine grain A 516 65
C70 plain carbon, killed, fine grain A 516 70
D70 manganese-silicon-nomalized A 537 1
D80 manganese-silicon-Q&T A A 537 2
E55 plain carbon A 442 55
E60 plain carbon A 442 60
H75 manganese-molybdenum-nomalized A 302 A
H80 manganese-molybdenum-nomalized A 302 B, C or D
J80 manganese-molybdenum-Q&T A A 533 CI-1 B
J90 manganese-molybdenum-Q&T A A 533 CI-2 B
J100 manganese-molybdenum-Q&T A A 533 CI-3 B
K75 chromium-manganese-silicon A202 A
K857 chromium-manganese-silicon A202 B
L65 molybdenum A204 A
L70 molybdenum A204 B
L75 molybdenum A204 C
N75 manganese-silicon A 299

A Q&T = quenched and tempered.

ASTM A691 TABLE 1 Plate Specifications
Pipe Grade Type of Steel ASTM Specification HB, max A
Number Grade
CM-65 carbon-molybdenum steel A 204/A 204M A 201
CM-70 carbon-molybdenum steel A 204/A 204M B 201
CM-75 carbon-molybdenum steel A 204/A 204M C 201
CMSH-70 carbon-manganese-silicon steel, normalized A 537/A 537M 1
CMS-75 carbon-manganese-silicon steel A 299/A 299M
CMSH-80 carbon-manganese-silicon steel, quenched and tempered A 537/A 537M 2
1/2 CR 1/2% chromium, 1/2% molybdenum steel A 387/A387M 2 201
1CR 1% chromium, 1/2% molybdenum steel A 387/A387M 12 201
1 1/4 CR 1 1/4% chromium, 1/2% molybdenum steel A 387/A387M 11 201
2 1/4CR 2 1/4% chromium, 1% molybdenum steel A 387/A387M 22 201
3CR 3% chromium, 1% molybdenum steel A 387/A387M 2f 201
5CR 5% chromium, 1/2% molybdenum steel A 387/A387M 5 225
9CR 9% chromium, 1% molybdenum steel A 387/A387M 9 241
ASTM A-252 mechanical properties:
GRADE YIELD TENSILE
1 30 000(205) 50 000(345)
2 35 000(240) 60 000(414)
3 45 000(310) 66 000(455)

ASTM A53 Standard Specifications

ASTM A53 Standard Spec. for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A53 / A53M Standard covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1/8 to NPS 26.

astm a53 pipe - Execution Standard of Seamless Steel Pipes

ASTM A53 Gr.B Pipes

structural seamless pipes - Execution Standard of Seamless Steel Pipes

A53 Structural pipe

ASTM A53 01 - Execution Standard of Seamless Steel Pipes

ASTM A53

The steel categorized in this standard must be open-hearth, basic-oxygen or electric-furnace processed and must have the following chemical requirements: carbon, manganese, phosphorus, sulfur, copper, nickel, chromium, molybdenum, and vanadium. The tubing shall undergo a seamless or welding process. Tension, bend, and flattening tests shall be performed to make sure that it must adhere to the mechanical properties of the standard. The hydrostatic test shall be applied, without leakage through the weld seam or the pipe body. Nondestructive electric test shall be made to make sure that the full volume of the pipe must be in accordance with the standard. The purchaser shall have the right to perform any of the inspections and tests set forth in this specification where deemed necessary to ensure that the pipe conforms to the specified requirements.

1.1 This specification covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1/8 to NPS 26 [DN 6 to DN 650] (Note 1), inclusive, with nominal wall thickness (Note 2) as given in Table X2.2 and Table X2.3. It shall be permissible to furnish pipe having other dimensions provided that such pipe complies with all other requirements of this specification. Supplementary requirements of an optional nature are provided and shall apply only when specified by the purchaser.
Note 1—The dimensionless designators NPS (nominal pipe size) [DN (diameter nominal)] have been substituted in this specification for such traditional terms as “nominal diameter,” “size,” and “nominal size.”
Note 2—The term nominal wall thickness has been assigned for the purpose of convenient designation, existing in name only, and is used to distinguish it from the actual wall thickness, which may vary over or under the nominal wall thickness.

1.2 This specification covers the following types and grades:
1.2.1 Type F—Furnace-butt-welded, continuous welded Grade A,
1.2.2 Type E—Electric-resistance-welded, Grades A and B, and
1.2.3 Type S—Seamless, Grades A and B.

Note 3—See Appendix X1 for definitions of types of pipe.
1.3 Pipe ordered under this specification is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging, subject to the following qualifications:
1.3.1 Type F is not intended for flanging.
1.3.2 If Type S or Type E is required for close coiling or cold bending, Grade A is the preferred grade; however, this is not intended to prohibit the cold bending of Grade B pipe.
1.3.3 Type E is furnished either no expanded or cold expanded at the option of the manufacturer.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.5 The following precautionary caveat pertains only to the test method portion, Sections 7, 8, 9, 13, 14, and 15 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.
1.6 The text of this specification contains notes or footnotes, or both, that provide explanatory material. Such notes and footnotes, excluding those in tables and figures, do not contain any mandatory requirements.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Scope

1.1 ASTM A53 / A53M Standard Specification covers seamless carbon steel pipe for high-temperature service (Note 1) in NPS 1/8 to NPS 48 [DN 6 to DN 1200] (Note 2) inclusive, with nominal (average) wall thickness as given in ASME B 36.10M. It shall be permissible to furnish pipe having other dimensions provided such pipe complies with all other requirements of this specification. Pipe ordered under this specification shall be suitable for bending, flanging, and similar forming operations, and for welding. When the steel is to be welded, it is presupposed that a welding procedure suitable to the grade of steel and intended use or service will be utilized.
NOTE 1: It is suggested, consideration be given to possible graphitization.
NOTE 2: The dimensionless designator NPS (nominal pipe size) [DN (diameter nominal)] has been substituted in this standard for such traditional terms as “nominal diameter,” “size,” and “nominal size.”
1.2 Supplementary requirements of an optional nature are provided for seamless pipe intended for use in applications where a superior grade of pipe is required. These supplementary requirements call for additional tests to be made and when desired shall be so stated in the order.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 The following precautionary caveat pertains only to the test method portion, Sections 11, 12, and 13 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Types and grades:
Type F—Furnace-butt-welded, continuous welded Grade A,
Type E—Electric-resistance-welded, Grades A and B, and
Type S—Seamless, Grades A and B.

This specification covers seamless carbon steel pipe for high-temperature service
Sizes (Seamless): 1/2″ NB – 60″ NB
Sizes (ERW): 1/2″ NB – 24″ NB
Sizes (SAW): 16″ NB – 100″ NB

Wall Thickness available:
Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thickness.

Additional Testing:
NACE MR0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.

Chemical requirements
Element Type S
(seamless)
Type E Type F
(electric-
resistance welded)
(furnace-
welded pipe)
Grade A Grade B Grade A Grade B Grade A
Carbon max. % 0.25 0.30 0.25 0.30 0.3
Manganese % 0.95 1.2 0.95 1.2 1.2
Phosphorous, max. % 0.05 0.05 0.05 0.05 0.05
Sulfur, max. % 0.045 0.045 0.045 0.045 0.045
Copper, max.% 0.40 0.40 0.40 0.40 0.4
Nickel, max. % 0.40 0.40 0.40 0.40 0.4
Chromium, max. % 0.40 0.40 0.40 0.40 0.4
Molybdenum, max. % 0.15 0.15 0.15 0.15 0.15
Vanadium, max. % 0.08 0.08 0.08 0.08 0.08
Hot-dipped Galvanizing:

Sets standards for coating of pipe with zinc inside and outside by the hot-dipped process. Weight of coating must not average less than 1.8 oz. per square foot and not less than 1.6 oz. per square foot.

PERMISSIBLE VARIATIONS IN WALL THICKNESS

The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

PERMISSIBLE VARIATIONS IN WEIGHTS PER FOOT

Plus or minus 10%

PERMISSIBLE VARIATIONS IN OUTSIDE DIAMETER

Outside Diameter at any point shall not vary from standard specified more than:

For NPS 1 1/2 and Smaller Sizes For NPS 2 and Larger Sizes
1/64″ 1/32″ under 1% over 1%under
TENSILE REQUIREMENTS
Seamless and Electric-resistance-welded Continuous-Welded
Grade A Grade B
Tensile Strength, min., psi 48,000 60,000 45,000
Yield Strength, min., psi 30,000 35,000 25,000
NUMBER OF TESTS REQUIRED

Seamless and Electric-Resistance-Welded — Bending, flattening, tensile on one length of pipe from each lot of 500 lengths or less of a size. Continuous-Weld — Bending, flattening, tensile

NPS 1 1/2 & smaller NPS 2 & larger
one / 25 tons one / 50 tons
HYDROSTATIC TESTING

Hydrostatic inspection test pressures for plain end and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and electric-resistance-weld pipe.

MECHANICAL TESTS SPECIFIED

Tensile Test — Transverse required on ERW for NPS 8 and large. Sending Test (Cold) — STD and XS-NPS 2 and under XXS-NPS 1 1/4 and under.

Degree of Bend Diameter of Mandrel
For Normal A53 Uses 90 12 x nom dia. of pipe
For Close Coiling 180 8 x nom dia. of pipe

Flattening Test — NPS 2 and larger STD and XS. (Not required for XXS pipe.)

LENGTHS

Standard Weight

  • Single Random — 16′ – 22′. 5% may be jointers. If Plain Ends — 5% may be 12′ – 16′.
  • Double Random — Shortest Length 22′, minimum average for order 35′.

Extra Strong and Double Extra Strong

  • Single Random — 12′ -22′. 5% may be 6′ – 12′.
  • Double Random (XS and lighter) — Shortest Length 22′, minimum average for order 35′.
  • Lengths longer than single random with wall thicknesses heavier than XS subject to negotiation.
REQUIRED MARKINGS ON EACH LENGTH

(On Tags attached to each Bundle in case of Bundled Pipe)

GENERAL INFORMATION
  • Couplings — Applied handling tight. Couplings, 2″ and smaller straight tapped, other sizes taper tapped.
  • Thread Protection — Applied to pipe 4″ and larger.
  • End Finish (unless otherwise specified) –STD or XS, or wall thicknesses less than 0.500 in. (excluding XXS): Plain and beveled
  • All XXS and wall thicknesses over 0.500 in.: Plain end square cut.

ASTM A106 Seamless carbon steel pipe for high temperature service

ASTM A106 / A106M – 11 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
astm a106 pipe 1 - Execution Standard of Seamless Steel Pipes

ASTM A106 Gr.B Pipes

structural seamless pipes - Execution Standard of Seamless Steel Pipes

A53 Structural pipe

fluid tubes 1 - Execution Standard of Seamless Steel Pipes

Tubes for Fluid

Description:

1.standards: ASTM A106 (ASME SA106) 
2.products mainly used: apply to bending, curling and similar forming process. 
3.the main products of steel / steel grade: Gr.A; Gr.B; Gr.C. 
4.Specifications: diameter: 10.3 to 114.3 mm thickness: 0.8 to 12 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe. 
5.Chemical composition and mechanical properties
6.JIS Number and Corrensponding Foreign Standards

ASTM A106 (ASME SA106) Scope:

This specification covers seamless carbon steel pipe for high-temperature service (Note 1) in NPS 1/8 to NPS 48 inclusive, with nominal (average) wall thickness as given is ANSI B36.10. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification. Pipe ordered under this specification shall be suitable for bending, flanging, and similar forming operations, and for welding. When the steel is to be welded, it is presupposed that a welding procedure suitable to the grade of steel and intended use or service will be utilized (Note 2).
NOTE 1 Α Consideration should be given to possible graphitization of the material at the higer temperatures at which it may be used.
NOTE 2 Α Grades A rather than Grades B or Grades C pipe should be used for close coiling, or cold bending. The purpose for which the pipe is to be used should be stated in the order. This note is not intended to prohibit the cold bending of Grades B seamless pipe.

Supplementary requirements (S1 to S4) of an optional nature are provided for seamless pipe intended for use in applications where a superior grade of pipe is required. These supplementary requirements call for additional tests to be made and when desired shall be so stated in the order.

When these products are to be used in applications conforming to ISO Recommendations for Boiler Construction, the requirements of Specification A 520 (Mechanical Property Requirements Section) shall supplement and supersede the requirements of this specification. 1.4 The values stated in inch-pound units are to be regarded as the standard.
NOTE 3 Α The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter”, “size”, and “nominal size”.

The following precautionary caveat pertains only to the test method portion, Sections 11, 12, 13, 14, and 15, of this specification; This standard does not purport to address all of the safety problem, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Carbon Steel Pipe Features Specifications
O.D.(mm) Wall Thickness Unit(mm)
2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28
Φ32
Φ34-Φ36
Φ38
Φ40
Φ42
Φ45
Φ48-Φ60
Φ63.5
Φ68-Φ73
Φ76
Φ80
Φ83
Φ89
Φ95
Φ102
Φ108
Φ114
Φ121
Φ127
Φ133
Φ140
Φ146
Φ152
Φ159
Φ168
ASTM A106 (ASME SA106) Grade and Chemical Composition (%)
Grade C≤ Mn P≤ S≤ Si≥ Cr≤ Cu≤ Mo≤ Ni≤ V≤
A 0.25 0.27-0.93 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08
B 0.30 0.29-1.06 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08
C 0.35 0.29-1.06 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08
ASTM A106 (ASME SA106) Mechanical Properties
Grade Rm Mpa Tensile Strength Yield Point (Mpa) Elongation Delivery Condition
A ≥330 ≥205 20 Annealed
B ≥415 ≥240 20 Annealed
C ≥485 ≥275 20 Annealed
ASTM A106 (ASME SA106) Dimension Tolerances
Pipe Type Pipe Sizes Tolerances
Cold Drawn OD ≤48.3mm ±0.40mm
≥60.3mm ±1%mm
WT ±12.5%
JIS Number and Corrensponding Foreign Standards
JIS
ASTM
BS
DIN
NF
ISO

Index Number

Std.No

Grade

Type

Std.No

Grade

Type

Std.No

Grade

Type

Std.No

Grade

Type

Std.No

Grade

Type

Std.No

Grade

Type

G3456

STPT370
(STPT38)

C
A106
GrA
C
3602
HFS360
C
17175
St35.8
C
A49-211
TU37b
C
2604/2
TS5
C
C004
CFS360
C
17177
St37.8
C
A49-213
TU37c
C
2604/3
TW9H
C
ERW360
C
A49-243
TU37c
C
CEW360
C

STPT410 
(STPT42)

 

C
A106
GrB
C
3602
HFS410
C
17175
St45.8
C
A49-211
TU42b
C
2604/2
TS9H
C
CFS410
C
17177
St42.8
C
A49-213
TU42c
C
ERW410
C
A49-243
TU42c
C
CEEW410
C

STPT480 
(STPT42)

C
A106
GrC
C
3602
HFS460
C
A49-211
TU48b
C
2604/2
TS14
C
CFS460
C
A49-213
TU48c
C
ERW460
C
CEEW460
C

ASTM A179 / A179M – 90a

ASTM A179 / A179M – 90a Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes

Because of ASTM A179 grade’s temperature withstanding capabilities, it is applied to steel pipe of tubular heat exchanger, condensers and similar heat transfer equipment. Our ASTM A179 seamless tubes are used in sugar mills & distilleries, pumps and petrochemicals, cement and construction industries and steel plants. 

Yaang can supply ASTM A179 steel tube from stock or from reputed steel mills. We also offer steel fabrication service where steel plates can go through processings like cutting, welding, bending, machining, pre-coating, pre-lined, beveling, or as you require.ASTM A179 Tubes shall be made by the seamless process and shall be cold drawn. Heat and product analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, manganese, phosphorus, and sulfur. The steel materials shall also undergo hardness test, flattening test, flaring test, flange test, and hydrostatic test.

This specification covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus. Tubes shall be made by the seamless process and shall be cold drawn. Heat and product analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, manganese, phosphorus, and sulfur. The steel materials shall also undergo hardness test, flattening test, flaring test, flange test, and hydrostatic test.

Note:
  • Mill test certificates will be issued according to EN10204.3
  • All tubes shall be supplied as per applicable ASTM Specification.
  • The tubes Shall be Seamless and the testing shall be as per A 450 / A450M.
Features Specifications
OD(mm) Wall Thickness Unit(mm)
2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28
Φ32
Φ34-Φ36
Φ38
Φ40
Φ42
Φ45
Φ48-Φ60
Φ63.5
Φ68-Φ73
Φ76
Φ80
Φ83
Φ89
Φ95
Φ102
Φ108
Φ114
Φ121
Φ127
Φ133
Φ140
Φ146
Φ152
Φ159
Φ168
Grade and Chemical Composition (%)
Chemical Composition C Mn P≤ S≤ Si≤
0.06-0.18 0.27-0.63 0.035 0.035 0.25
Mechanical properties
Yield Strength (Mpa) Tensile Strength (Mpa) Elongation (%)
≥180 ≥325 ≥35
SA-450/SA-450M
OD In (mm) + WT In(mm) +
<1(25.4) 0.10 0.10 ≤1.1/2(38.1) 20% 0
11.1/2(25.438.1) 0.15 0.15 >1.1/2(38.1) 22% 0
>1.1/2<2(38.150.8) 0.20 0.20
2<2.1/2(50.863.5) 0.25 0.25
2.1/2<3(63.576.2) 0.30 0.30
34(76.2101.6) 0.38 0.38
>47.1/2(101.6190.5) 0.38 0.64
>7.1/29(190.5228.6) 0.38 1.14
Material Comparison Tables (ASTM ℃KS, JIS, DIN, BS, NBN, NF, UNI)

A 179 Seamless Cold Drawn Low-C Steel Heat Exchanger and Conderser Tubes

ASTM
UNS NO.
KOREA/JAPANES

GERMAN

BRITISH
BELGIAN
FRENCH
ITALIAN
KS/JIS Symbol
KS/JIS Numbe
Re
DIN Type

DIN

Materiral
Number

Re

B.S

B.S Grade
Re
NBN Type
NBN Grade
Re
AF
NF
Re
UNI Type
UNI
Re
ASTM A179 K01200 STBH 340 / STB 35 D3563 / G3461 St 35.4 1629

1.0309

  3606 CFS 320   D 37-2 629 (3b) TU 37 C A49-215 (3a) C 14 5462
        St 35.8 17175 1.0305 Plus 
DIN 2391 Gutegard C.NBK
           
U-Bend Fabrication Tolerances:
Item Condition (when) Tolercance
  Nominal bend radius ≤ 2 x nominal OD less than or equal to 12%
Ovality 2 x nominal OD < Nominal bend radius ≤ 4 x nominal OD less than or equal to 10%
  Nominal bend radius > 4 x nominal OD  less than or equal to 5%
  Nominal bend radius ≤ 2 x nominal OD 0.75 x nominal wall
Mimimum wall thickness 2 x nominal OD < Nominal bend radius ≤ 4 x nominal OD 0.8 x nominal wall
  Nominal bend radius > 4 x nominal OD 0.9 x nominal wall
  Nominal bend radius ≤ 8″ (200mm) +/-3/64″(1mm)
Bending Radius 8″ (200mm) < Nominal bend radius ≤ 16″ (400mm) +/-1/16″(1mm)
  Nominal bend radius >16″ (400mm) +/-5/64″(1mm)
Disrance between legs   Max 1/16″(1.5mm)
Wall thinning of bending area   Max 17%
Difference between leg lengths at the ends Leg length ≤ 16′ (4.88m) +1/8″(3mm)
Leg length > 16′ (4.88m) +3/16″(5mm)
Deviation from plane of bend   ≤ 3/16″(1.5mm)
Flattening on bend   ≤ 10% nominal diameter
Straight leg length ≤5m +1/8″(3mm)
>5m +3/16(5mm)
Total tube length including radius ≤6m +3/16(5mm)
>6m +5/16″(8mm)

ASTM A192 / A192M Standard Specification 
for Seamless Carbon Steel Boiler Tubes for High-Pressure Service

The ASTM A192 belongs to the carbon seamless tubes, which is specially designed for high, middle, low pressure purpose in seamless carbon steel boilers and as super heater tubes.

Description:

This specification has been approved for use by agencies of the Department of Defense.
Consult the DoD Index of Specifications and Standards for specific year of issue which has been adopted by the Department of Defense.

Test:

1.Hydrostatic or Nondestructive Electric Test

2.Heat Treatment:Min temperature 650.

3.Surface Condition:Free of scale, A slight amount of oxidation will not be considered as scale.

4.Flattening Test, Flaring Test. Flange Test, Hardness Test, Hydrostatic Test

Features Specifications
OD(mm) Wall Thickness Unit(mm)
2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28
Φ32
Φ34-Φ36
Φ38
Φ40
Φ42
Φ45
Φ48-Φ60
Φ63.5
Φ68-Φ73
Φ76
Φ80
Φ83
Φ89
Φ95
Φ102
Φ108
Φ114
Φ121
Φ127
Φ133
Φ140
Φ146
Φ152
Φ159
Φ168
Material Comparison Tables (ASTM ℃KS, JIS, DIN, BS, NBN, NF, UNI)
ASTM
STANDARD
UNS NO.
KOREA/JAPANES

GERMAN

BRITISH
BELGIAN
FRENCH
ITALIAN
KS/JIS Symbol
KS/JIS Numbe
Re
marks
DIN Type

DIN

Number

Materiral

Number

Re
marks

B.S

Number

B.S Grade
Remarks
NBN Type
NBN Grade
Re
marks
AFNOR Type
NF Number
Re
marks
UNI Type
UNI Number
Re
marks

A 192

Seamless C-Steel Boiler Tube for High Pressure Service

K01201 STBH 340 / STB 340 D3563 / G3461 (30) St 35.8 17175 1.0305 3059 320 (27)(30) D45 837 (27) TU 37C A49-213 (27) C14 5462

(27)

ASTMA 192M / ASME SA-192M Chemical Compositions(%)
C Si Mn P S Cr Mo Cu Ni V
0.06-0.18 ≤0.25 0.27-0.63 ≤0.035 ≤0.035 / / / / /
ASTM A 192M / ASME SA-192M Mechanical Properties
Yield Strength (Mpa) Tensile Strength (Mpa) Elongation (%)
≥180 ≥325 ≥35
JIS Number and Corrensponding Foreign Standards
JIS
ASTM
BS
DIN
NF
ISO

Index Number

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

G3461
STB340
C
A161
LC
C
3059
HFS320
C
A49-245
TS34e
C
C010
(STB35)
A192
C
CFS320
C
TS34c
C
A226
C
ERW320
C
A556
GrA2
C
CEW320
C
A557
GrA2
C
S1 360
C
S2 360
C
ERW 360
C
CEW360
C
3606
ERW320
C
CEW320
C
CFS320
C
STB410
C
A179
GrC
C
3059
S1 440
C
17175
St45.8
C
A49-213
TU42c
C
2604/2
TS9H
C
(STB42)
A210
GrA1
C
S2 440
C
17177
St42.8
C
A49-215
TU42c
C
TW9H
C
A556
GrB2
C
ERW 440
C
A49-243
TS42c
A557
GrB2
C
CEW 440
C
A49-245
TS42c
3602
HFS 410
C
TS42c
CFS 410
C
ERW 410
C
CEW 410
C
3606
ERW 440
C
CEW 440
C
CFS 440
C
STB510
C
C
17175
19Mn5
C
A49-213
TU52C
C
2604/2
TS18
C
(STB52)
C
A49-248
TU52C
C

Scope:

1. This specification covers minimum-wall-thickness, seamless carbon steel boiler tubes and superheater tubes for high-pressure service. 
2. The tubing sizes and thicknesses usually furnished to this specification are 1/2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.00 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
3. Mechanical property requirements do not apply to tubing smaller than 1/8 in [3.2 mm] inside dimeter or 0.015 in. [0.4 mm] thickness.
4 When these products are to be used in applications conforming to ISO Recommendations for Boiler Construction, the requirements of specification A 520 shall supplement and supersede the requirements of this specification.
5. The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

ASTM A199 Heat-Exchanger tubes, Condenser Tubes

ASTM A199/A199M-92 Specification for Seamless Cold-Drawn Intermediate Alloy-Steel Heat-Exchanger tubes and Condenser Tubes. The ASTM A119 pressure boiler tube is wrapped with nylon fabric then bundled with 2 steel strips in each end, and other 2 in the middle.

Main grade we supply for ASTM A199
  • ASTM A199 T11
  • ASTM A199 T22
  • ASTM A199 T5
Delivery Condition:
  • Heat treatment,Annealed, Normalized, Normalized and Tempered
Surface treatment:
  • Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
  • Painting as requested.
Chemical analysis of ASTM A199 (%):
Steel grade WT C Mn P
(max)
S
(max)
Si Cr Mo
ASTM A199/T4 MW 0.15MAX 0.30-0.60 0.03 0.03 0.50-1.00 2.15-2.85 0.44-0.65
ASTM A199/T5 MW 0.50-0.15 0.30-0.60 0.03 0.03 0.50MAX 4.00-6.00 0.45-0.65
ASTM A199/T7 MW 0.15MAX 0.30-0.60 0.03 0.03 0.50-1.00 6.00-8.00 0.45-0.65
ASTM A199/T9 MW 0.15MAX 0.30-0.60 0.03 0.03 0.25-1.00 8.00-10.0 0.90-1.10
ASTM A199/T11 MW 0.50-0.15 0.30-0.60 0.03 0.03 0.50-1.00 1.00-1.50 0.44-0.65
ASTM A199/T22 MW 0.50-0.15 0.30-0.60 0.03 0.03 0.50MAX 1.90-2.60 0.87-1.13

* Ni 0.40 max; V 0.18-0.25; Cb 0.06-0.10; N 0.03-0.07; Al 0.04 max

Mechnical Properties of ASTM A199:
Steel grade Tensile Strength
(Mpa)
Yield Strength
(Mpa)
Elongation
(%)
SPECIFIC REQUIREMENT
ASTM A199/T4 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T5 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T7 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T9 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T11 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T22 415MIN 170MIN 30/22 Hardness 85 HRB MAX
Usage:

Steel pipes are ubiquitous and can be found underground and within residential walls, laboratories, and commercial and industrial structures. Seamless steel pipe transport fluids including water, natural gas, waste and air. Three manufacturing methods exist to produce steel pipes.

Seamless steel pipes are produced using an extrusion mold. Welded steel pipes are produced by rolling a sheet of steel into a tube and welding the seam. Seamless steel pipes are less expensive. The third method is casting. Molten steel is poured into a casting mold.

Our steel pipes and tubes are the preferred choice for processes under the following conditions:
– high temperatures
– aggressive media (e.g. acid and lye)
– and/or high pressure
We have a team of experienced professionals with years of experience in manufacturing.

ASTM A210/ASME SA210 Seamless Medium-Carbon Steel Boiler and Superheater Tubes

ASTM A210/ASME SA210 Standard Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes.

ASTM A210 is the standard covers seamless medium-carbon steel boiler and superheater tubes. Seamless medium carbon steel pipe for boiler tube and boiler flue pipe, including a minimum wall thickness of the security side, the dome and the support tube and superheater tubes. 

Mechanical Properties:
Grade C(Max) Mn Si(Min) P(Max) S(Max)
A1 0.27 Max.0.93 0.10 0.035 0.035
C 0.35 0.29~1.06 0.10 0.035 0.035
Chemical composition:
Grade Tensile Strength(Mpa) Yield Strength(Mpa) Elongation (%)
A1 ≥ 415 ≥ 255 ≥ 30
C ≥ 485 ≥ 275 ≥ 30
Outside Diameter & Tolerance
Hot rolled Outside Diameter, mm Tolerance, mm
OD≤101.6 +0.4/-0.8
101.6<OD≤127 +0.4/-1.2
Cold Drawn Outside Diameter, mm Tolerance, mm
OD<25.4 ±0.10
25.4≤OD≤38.1 ±0.15
38.1<OD<50.8 ±0.20
50.8≤OD<63.5 ±0.25
63.5≤OD<76.2 ±0.30
76.2≤OD≤101.6 ±0.38
101.6<OD≤127 +0.38/-0.64
Wall thickness & Tolerance
Hot rolled
Outside Diameter , mm Tolerance, %
OD≤101.6, WT≤2.4 +40/-0
OD≤101.6, 2.4<WT≤3.8 +35/-0
OD≤101.6, 3.8<WT≤4.6 +33/-0
OD≤101.6, WT>4.6 +28/-0
OD>101.6, 2.4<WT≤3.8 +35/-0
OD>101.6, 3.8<WT≤4.6 +33/-0
OD>101.6, WT>4.6 +28/-0
Cold Drawn Outside Diameter , mm Tolerance, %
OD≤38.1 +20/-0
OD>38.1 +22/-0

Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; and so on. 
Max length: 25000mm, also U bending can be offered.
Keyword: boiler steel pipe, ASTM A210, ASME SA210, SA210A1 

ASTM A213M-09

ASTM A213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

ASTM A213 T5b measurment out diameter 1 - Execution Standard of Seamless Steel Pipes

ASTM A213M-09 standard is issued under the fixed designation A 213/A 213M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

This standard is issued under the fixed designation A 213/A 213M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (′) indicates an editorial change since the last revision or reapproval.
Thisstandardhas been approved for use by agencies of the Department of Defense.

1. Scope

1.1 This specication2 covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5,TP304, etc. These steels are listed in Tables 1 and 2.
1.2 Grades containing the letter, H, in their designation, have requirements different from those of similar grades not containing the letter, H. These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements.
1.3 The tubing sizes and thicknesses usually furnished to this specication are 18 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness or, if specied in the order, average wall thickness. Tubing having other diameters may be furnished, provided such tubes comply with all other requirements of this specication.1. The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specication is specied in the order.2. Referenced Documents

2.1 ASTM Standards:3

1 This specication is under the jurisdiction of ASTM Committee A01on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.10 on Stainless and Alloy Steel Tubular Products.
Current edition approved April 1, 2009. Published April 2009. Originally approved in 1939. Last previous edition approved in 2009 as A 213/A 213M – 09.
2 For ASME Boiler and Pressure Vessel Code applications see related Specication SA-213 in Section II of that Code.

A 262 Practices for Detecting Susceptibility to Intergranu lar Attack in AusteniticStainless Steels
A 941 Terminology Relating to Steel,Stainless Steel, Re lated Alloys, and Ferroalloys
A 1016/A 1016M Specication for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes
E112 Test Methods for Determining Average Grain Size
3. Terminology

1. Denitions—For denitions of terms used in this specication, refer to Terminology A 941.

2. Ordering Information

4.1 It shall be the responsibility of the purchaser to specify all requirements that are necessary for products under this specication. Such requirements to be considered include, but are not limited to, the following:
4.1.1 Quantity (feet, metres, or number of lengths),
4.1.2 Name of material (seamless tubes),
4.1.3 Grade (Tables 1 and 2),
4.1.4 Condition (hot nished or cold nished),
4.1.5 Controlled structural characteristics (see 6.3),
4.1.6 Size (outside diameter and minimum wall thickness, unless average wall thickness is specied),
4.1.7 Length (specic or random),
4.1.8 Hydrostatic Test or Nondestructive Electric Test (see 10.1),
4.1.9 Specication designation and year of issue,
4.1.10 Increased sulfur (for machinability, see Note B, Table 1, and 15.3), and

Special requirements and any supplementary requirements selected.General Requirements5.1 Product furnished to this specication shall conform to the requirements of Specication A 1016/A 1016M, including any supplementary requirements that are indicated.
Nominal Pipe Size (NPS): 1/8, 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2, 2 1/2 inch

Outside Diameter: 10,3 – 73 mm (0,405 – 2,875 inch)

Wall Thickness: 1,24 – 7,01 (0,049 – 0,276 inch)

Notes:

Steel Grades -TP 304, TP 304L, TP 316, TP 316L, TP 321, T5, T11, T12, T13, T91Technical requirements acc. to ASTM A 450.Size of pipes in accordance with ANSI/ASME B36.19M.The quality of pipes is ensured by manufacturing process and non-destructive test.Hardness of metal not less than 100 HB.Length tolerance of measured pipes not greater than +10 mm.Monitoring of continuity of metal by pneumotest with pressure of 6 bar is available.Intergranular corrosion test in accordance with ASTM A262, Practice E is available.Weight Count:(just for Alloy Steel)Weight(Kg/M)=(OD-WT)*WT*0.02466 , OD:Outside Diameter, WT:Wall-Thickness

Sizes:
NPS, inch
Outside Diameter(mm)
Wall Thickness(mm)
Max. Length(M)
1/8
10,3
1,24; 1,73; 2,40
12
1/4
13,7
1,65; 2,24; 3,02
3/8
17,1
1,65; 2,31; 3,20
1/2
21,3
1,65; 2,11; 2,77; 3,73
3/4
26,7
1,65; 2,11; 2,87; 3,91
1
33,4
1,65; 2,77; 3,38; 4,55
10
1 1/4
42,4
1,65; 2,77; 3,56; 4,85
1 1/2
48,3
2,77; 3,68; 5,08
2
60,3
3,91; 5,54
7
2 1/2
73,0
5,16; 7,01
Mechanical properties:
Steel Grade
Tensile StrengthN/mm2(min)
Yield StrengthN/mm2(min)
Elongation % (min)
TP304
515
205
35
TP304L
485
170
35
TP316
515
205
35
TP316L
485
170
35
TP321
515
205
35
T11
≥415
≥205
30
T12
≥415
≥220
T13
≥415
≥205
30
Chemical Composition(%, max)
Steel Grade
C
Si
Mn
Cr
Ni
Mo
S
P
TP304
0,08
0,75
2
18 – 20
8 – 11
0,03
0,04
TP304L
0,035
0,75
2
18 – 20
8 – 13
0,03
0,04
TP316
0,08
0,75
2
16 – 18
11 – 14
2 – 3
0,03
0,04
TP316L
0,035
0,75
2
16 – 18
10 – 15
2 – 3
0,03
0,04
TP321
0,08
0,75
2
17 – 20
9 – 13
0,03
0,04
T11
0.05-0.15 0.50-1.00 0.30-0.60
0.5-1.0
1.0-1.5 ≤0.25 ≤0.025
T12
0.05-0.15 ≤0.50 0.30-0.61 0.80-1.25
0.44-0.65 ≤0.25 ≤0.025
T13
0.05-0.15 ≤0.50 0.30-0.60 1.90-2.60
0.87-1.13 ≤0.25 ≤0.025

Material Comparison Tables (ASTM →KS, JIS, DIN, BS, NBN, NF, UNI

ASTM A333 Standard Specification

ASTM A333 / A333M – 16 Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications.

ASTM A333 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure.

Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service

ASTM A333 standard covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. ASTM A333 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure. Tensile tests, impact tests, hydrostatic tests, and nondestructive electric tests shall be made in accordance to specified requirements.

Scope of ASTM A333
  • This specification covers nominal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. Several grades of ferritic steel are included as listed in Table 1. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.
  • Supplementary Requirement S1 of an optional nature is provided. This shall apply only when specified by the purchaser.
  • The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
  • Note 1: The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter”, “size”, and “nominal size”.
Mainly Grade of ASTM A333:
  • ASTM A333 Grade 1
  • ASTM A333 Grade 3
  • ASTM A333 Grade 4
  • ASTM A333 Grade 6
  • ASTM A333 Grade 7 Pipe
  • ASTM A333 Grade 8
  • ASTM A333 Grade 9
  • ASTM A333 Gr.10 pipe
  • ASTM A333 Grade 11
Strike temperature condition:
Crade The lowest temperature for strike test
ASTM A333 Grade 1 -50 -45
ASTM A333 Grade 3 -150 -100
ASTM A333 Grade 4 -150 -100
ASTM A333 Grade 6 -50 -45
ASTM A333 Grade 7 -100 -75
ASTM A333 Grade 8 -320 -195
ASTM A333 Grade 9 -100 -75
ASTM A333 Grade 10 -75 -60
 Mechanical requiremnts of ASTM A333 alloy pipe
Grade Tensile Strength (MPa) Yield Point (MPa) Elongation (%)
Y X
Grade 1 ≥380 ≥205 ≥35 ≥25
Grade 3 ≥450 ≥240 ≥30 ≥20
Grade 4 ≥415 ≥240 ≥30 ≥16.5
Grade 6 ≥415 ≥240 ≥30 ≥16.5
Grade 7 ≥450 ≥240 ≥30 ≥22
Grade 8 ≥690 ≥515 ≥22
Grade 9 ≥435 ≥315 ≥28
Grade 10 ≥550 ≥450 ≥22
Grade 11 ≥450 ≥240 ≥18
 Chemical Composition (%) of ASTM A333 steel pipe
Grade Chemical Composition (%)
C Si Mn P S Cr Ni Cu Mo V Al
Grade 1 ≤0.30 0.40-1.06 ≤0.025 ≤0.025
Grade 3 ≤0.19 0.18-0.37 0.31-0.64 0.025 ≤0.025 3.18-3.82
Grade 4 ≤0.12 0.18-0.37 0.50-1.05 ≤0.025 ≤0.025 0.44-1.01 0.47-0.98 0.40-0.75 0.04-0.30
Grade 6 ≤0.30 ≥0.10 0.29-1.06 ≤0.025 ≤0.025
Grade 7 ≤0.19 0.13-0.32 ≤0.90 ≤0.025 ≤0.025 2.03-2.57
Grade 8 ≤0.13 0.13-0.32 ≤0.90 ≤0.025 ≤0.025 8.40-9.60
Grade 9 ≤0.20 0.40-1.06 ≤0.025 ≤0.025 1.60-2.24 0.75-1.25
Grade 10 ≤0.20 0.10-0.35 1.15-1.50 ≤0.03 ≤0.015 ≤0.15 ≤0.25 ≤0.015 ≤0.50 ≤0.12 ≤0.06
Grade 11 ≤0.10 ≤0.35 ≤0.6 ≤0.025 ≤0.025 ≤0.50 35.0-37.0 ≤0.50
Referenced Documents
  • A370 Test Methods and Definitions for Mechanical Testing of Steel Products
  • A671 Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures
  • A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
  • E23 Test Methods for Notched Bar Impact Testing of Metallic Materials

ASTM A556 Superheater Steel Tube

ASTM A556 / A556M – 96(2012) Standard Specification for Seamless Cold-Drawn Carbon Steel Feedwater Heater Tubes.

ASTM A556 is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Scope

1.1 This specification2 covers minimum-wall-thickness, seamless cold-drawn carbon steel tubes including bending into the form of U-tubes, if specified, for use in tubular feedwater heaters.

1.2 The tubing sizes covered shall be 5/8 to 11/4-in. [15.9 to 31.8-mm] outside diameter, inclusive, with minimum wall thicknesses equal to or greater than 0.045 in. [1.1 mm].

1.3 Optional supplementary requirements are provided, and when desired, shall be stated in the order.

1.4 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

  • Related Standard: ASTM A556, ASME SA556
  • Related Material: SA556Gr.B2, SA556Gr.C2
Descripition:
  • Outside Diameter: 12-40mm
  • Wall Thickness: 1-4mm
  • Length: max length 27 meters

Method: Cold Drawn
Delivery Condition: NBK, Bright, U bending.

Chemistry Composition
Grade C % Si % Mn % P % S %
B2 0.27 max 0.10 min 0.29-0.93 0.030 max 0.030 max
C2 0.30 max 0.10 min 0.29-1.06 0.030 max 0.030 max
Mechanical Properties
Grade Tensile Strength MPa Yield Strength MPa Hardness HRB
B2 410 min 260 min 79 min
C2 480 min 280 min 89 min
Tolerances

Tolerances according to specification or according to agreement. Standard tolerances are:

Hot finished OD +/- 1% WT +/-12.5%
Cold finished OD +/-0.75% WT +/-10%

DIN/EN

Germany Safety(GS), Deutsches Institut für Normung(DIN)

Product name Executive standard Dimension (mm) Steel code/ Steel grade
Seamless Steel Tubes for Elevated Temperature DIN 17175 10~762 x 1.0~120 St35.8,St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36
Manufacturing pipeline,vessel,equipment,pipe fittings. DIN 1629 13.5~762 x 1.8~120 St37.0, St44.0, St52.0
Seamless steel tubes for pressure purposes EN 10216 4.0~60.0 x 0.5~8
5-7 m manufacturing lenght
P235GH TC1, P235GH TC2, 16Mo3
Seamless precision steel tube applications EN 10305-1 13.5~165.1 x 1.8~4.85 St33.2
Seamless Precision Steel Tube DIN 2391 4.0~60.0 x 0.5~8 St35, St45, St52
Seamless Steel Tubes DIN 2440 13.5~165.1 x 1.8~4.85 St33.2

EN10216-1 / DIN1629 Precision cold drawn seamless steel tube

DIN 1629 is the standard specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements. The main products of steel grade is DIN1629 ST37.0, DIN1629 ST44.0, DIN1629 ST52.0.

Application:

for Atuo usd;for machinery use;Oil cylinder tubeMotorcycle shock reducer steel tubesAuto shock reducer inner cylinderThe subclauses marked with a single dot give specifications which are to be agreed upon at the time of ordering.The subclauses marked with a two dots give specifications which optional and may be agreed upon at the time of ordering.

1. Field of application

1.1 This standard applies to seamless circular tubes and pipes(hereinafter briefly referred to as “tubes”) made of unalloyed steels as listed in table 1. These tubes are predominantly used in the constructin of chemical plant, vessels, pipework and for general mechanical engineering purposes. They are designed to meet high performance requirements. Normally there are no limiting vaiues or the maximum permissible working pressure of these tubes. The permissi l working temperature shall not exceed 300℃ are specified in Appendix A.)
The limits of application and other specifications given in this standard shall apply except in cases here other specifications are contained in codes of practice for specific fields of application, e.g. the Technische Regeln fur Dampfkessel (TRD) (Technical rules on steam boilers) or the Technische Regeln fur Druckbehalter (TRB)
(Technical rules on pressure vessels), AD-Merkblatter (AD Instrucation sheets).

Chemical composition of steels for seamless circular tuves subject to special repuirements
steel grade

Type of
deoxidization
(R, killed
(including
semi-killed))
(RR, fully killed)

chemical composition,
% by mass
Symbol
Material number
C
P
S
N¹)
Addition 
of nitrogen
fixing elements
(e.g.not less than 
0,020% AItotal
St37.0
1.0254
R
0.17
0.040
0.040
0.009²)
St44.0
1.0255
R
0.21
0.040
0.040
0.009²)
St52.0³)
1.0421
RR
0.22
0.040
0.035
Yes

¹) A content in excess of the maximum value started is permitted if a phosphorus content less than the maximum specifled by 0,005% P per 0,001% N is observed. However, the nitrogen content shall not exceed a value of 0.012% in the cast analysis and 0,014% in the product analysis.
²) The specified maximum values do not apply if the steels are supplied with the RR (instead of R) type of deoxidization
³) The content shall not exceed 0.55% Si and 1,06% Mn in the cast analysis or 0,60% Si and 1,70% Mn in the product analysis 
table 3. Amounts by which the chemical composition in the product analysis may deviate from the limiting values applicable to the cast analysis {see table2}

Element
Amount by which the product analysis
may deviate from the limiting values
applicable to the analysis
% by mass
C
+0,02
P
+0,010
S
+0,010
N
+0,001¹)

¹) A contant in excess of the maximum value stated is permitted if a phosphorus content less than the maximum specified by 0,005% P per 0,001% N is observed. However, the nitrogen contant shall not exceed a value of 0,012% in the cast analysis and 0,014% in the product analysis (this does not apply to the RR type of deoxidization.
table 4. Mechanical properties of tubes in the as delivered condition at room ternperature For wall thickness exceeding 65 mm, the values shall be agreed at the time of ordering

Steel grade
Upper yield stress
ReH
for wall thicknesses, in mm,

Tensile strangth
Rm

N/mm²

Elongation after fracture
A5
Symbol
Material 
number
up to 16
over 16
up to 40
over 40
up to 65
lonigtudinal
transverse
St 37.0
1.0254
235
225
216
350²) to 480
25
23
St 44.0
1.0256
275¹)
265¹)
255¹)
420²) to 550
21
19
St 52.0
1.0421
355
345
335
500²) to 650
21
19
steel-chemical composition (DIN1629):
Brand Chemical Composition(%)
C max Si max Mn P max S max
St 35 0.17 0.35 ≥0.40 0.025 0.025
St 45 0.21 0.35 ≥0.40 0.025 0.025
St 52 0.22 0.55 ≤1.60 0.025 0.025

Steel grade Chemical Composition(%)
Steel name Steel number C max Si max Mn P max S max Al min
E215 1.0212 0.10 0.05 0.70 0.025 0.025 0.025
E235 1.0308 0.17 0.35 1.20 0.025 0.025
E355 1.0580 0.22 0.55 1.60 0.025 0.025
Mechanical Properties(Mpa):
Steel grade BK BKW BKS GBK NBK
Yield strength Rm N/mm min Elongation% min Yield strength Rm N/mm min Elongation % min Yield strength Rm N/mm min Tensile Strength ReH N/mm min Elongation % min Yield strength Rm N/mm min Elongation % min Yield strength Rm N/mm min Tensile Strength ReH N/mm min Tensile Strength ReH N/mm min
St35 480 6 420 10 420 315 14 315 25 340-470 235 25
St45 580 5 520 8 520 375 12 390 21 440-570 255 21
St52 640 4 580 7 580 420 10 490 22 490-630 355 22

Steel grade Minimum values for the delivery condition
Steel name Steel number + C + LC + SR + A + N
Rm Mpa A% Rm Mpa A% Rm Mpa ReH Mpa A% ReH Mpa A% Rm Mpa ReH Mpa A%
E215 1.0212 430 8 380 12 380 280 16 280 30 290-430 215 30
E235 1.0308 480 6 420 10 420 350 16 315 25 340-480 235 25
E355 1.0580 640 4 580 7 580 450 10 450 22 490-630 355 22

DIN17175/EN10216 standard specification

DIN 17175 steel pipes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high temperature and high-pressure devices.
This alloy steel pipe is just a big class,and it has many classifivations.
Features Specifications
OD(mm)  Wall Thickness Unit(mm)
2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28                
Φ32                
Φ34-Φ36                
Φ38                
Φ40                  
Φ42                  
Φ45                
Φ48-Φ60              
Φ63.5              
Φ68-Φ73                
Φ76        
Φ80        
Φ83        
Φ89        
Φ95        
Φ102        
Φ108        
Φ114          
Φ121          
Φ127          
Φ133          
Φ140            
Φ146            
Φ152            
Φ159            
Φ168            
Chemical composition and Mechanical Property DN17175

Grade

Chemical Composition

Mechanical Property

C Si Mn P≤ S≤

Cr

Mo

(MPa)

(MPa)

(%)

St35.8 ≤0.17 0.10~
0.35
0.40~
0.80
0.030 0.030 / / 360~480 ≥235 ≥25
St45.8 ≤0.21 0.10~
0.35
0.40~
1.20
0.030 0.030 / / 410~530 ≥255 ≥21
15Mo3 0.12~
0.20
0.10
~0.35
0.40~
0.80
0.030 0.030 / 0.25~
0.35
460~600 ≥270 ≥20
Chemical composition and Mechanical Property of EN10216-2

Grade

Chemical Composition

Mechanical Property

C

Si

Mn

P≤

S≤

Cr≤

Mo

(MPa)

(MPa)

L t
195GH ≤0.13 ≤0.35 ≤0.70 0.025 0.020 0.30 ≤0.08 320~440 ≥195 ≥27 ≥25
P235GH ≤0.16 ≤0.35 ≤1.20 0.025 0.020 0.30 ≤0.08 360~500 ≥235 ≥25 ≥23
P265GH ≤0.20 ≤0.40 ≤1.40 0.025 0.020 0.30 ≤0.08 410~570 ≥265 ≥23 ≥21
20MnNb6 ≤0.22 0.15~
0.35
1.00~ 1.50 0.025 0.020 500~650 ≥355 ≥22 ≥20
16Mo3 0.12~
0.20
≤0.35 0.40~ 0.90 0.025 0.020 0.30 0.25~
0.35
450~600 ≥280 ≥22 ≥20

EN 10216 non alloy steel tubes

EN 10216 Seamless Steel Tubes1.jpg - Execution Standard of Seamless Steel PipesEN 10216 Seamless Steel Tubes - Execution Standard of Seamless Steel Pipes

This part of EN1026 specifies the technical delivery conditions in two test categories for seamless tubes for circular cross section, with specified elevated temperature properties, made of non-alloy and alloy steel.

Seamless steel tubes for pressure purposes
  • EN 10216-1    Non-alloy steel tubes with specified room temperature properties
  • EN 10216-2    Non alloy and alloy steel tubes with specified elevated temperature properties
  • EN 10216-3    Alloy fine grain steel tubes
  • EN 10216-4    Non-alloy and alloy steel tubes with specified low temperature properties
  • EN 10216-5    Stainless steel tubes

EN 10305 seamless precision steel tube

Yaang offers an extensive range of EN 10305 seamless precision steel tube.

EN 10305 is for seamless precision steel tube applications. EN 10305 european standard specifies the technical delivery conditions for seamless cold drawn steel pipe of circular cross section used in hyhydraulic and pneumatic power systems.

Tubes according to this EN 10305 European standard are characterised by having precisely defined tolerances on dimensions and a specified surface roughness. The allowed pressure rates and temperatures are the responsibility of the customer in accordance with the state of the art and in application of the safety coefficients specified in the application regulations, codes or standards.

Standard and Steel grade:
  • EN10305-1 E215
  • EN10305-1 E235
  • EN10305-1 E355

EN 10305 seamless precision steel tube shall be manufactured from hot finished seamless tubes by cold drawning. Other suitable methods of cold working are permitted. The tubes shall be delivered in the delivery condition +N which means that after the final cold drawing operation the tubes are normalized in a controlled atmosphere.

NBK means protective heat-treating under the non-oxidation enviroment to get a bright and smooth surface for the tubes.

Chemical composition(%) of EN 10305
Steel grade
Name
 Steel
Number
 C(% max)  Si(% max)  Mn(% max)  P(% max)  S(% max)
 E215  1.0212  0.10  0.05  0.70  0.025  0.015
 E235  1.0308  0.17  0.35  1.20  0.025  0.015
 E355  1.0580  0.22  0.55  1.60  0.025  0.015
Mechanical and technological properties of EN 10305
 Yield strength
(min Mpa)
 Tensile strength
(min Mpa)
 Elongation
(min %)
 215  290-430  30
 235  340-480  25
 355  490-630  22
Note:
  • The yield point for the annealed (GBK)condition on delivery is at least 50% of the (ultimate) tensile strength. Depending upon the degree of deformation in the drawing operation, the yield point of tubes delivered in the cold-finished/hard (BK)and cold-finished/soft(BKW) conditions, may be increased to a level close to the tensile strength.
  • In calculating the yield point, the following values are recommended : cold-finished/hard condition on delivery ≥ 80% of the tensile strength, cold-finished/soft condition on delivery ≥ 70% of the tensile strength.

DIN 2391-81 Part 2 Seamless precision steel tubes

DIN 2391-81 Part 2 defines the technical delivery conditions for seamless precision steel tubes according to DIN 2391 Part 1 which are made from the steel grades listed in section 5.
din 2391 little - Execution Standard of Seamless Steel Pipes
Precision tubes
Features Specifications
OD(mm) Wall Thickness Unit(mm)
2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28
Φ32
Φ34-Φ36
Φ38
Φ40
Φ42
Φ45
Φ48-Φ60
Φ63.5
Φ68-Φ73
Φ76
Φ80