ASTM A519

ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished. The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties. The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified.

Size range(mm):

  • Out diameter:10-324mm
  • Wall Tickness:1-30mm
  • Length:14000mm max

Grade:

  • ASTM A519 1020
  • ASTM A519 1025
  • ASTM A519 1035
  • ASTM A519 1045
  • ASTM A519 4130
  • ASTM A519 4140

Note:
DN — Nominal Diameter
NPS —Nominal Pipe Size

Steel grade and Chemical composition (%) of ASTM A519:

Grade

C Mn P≤ S≤ Si Cr Mo
1008

≤0.10

0.30-0.50 

0.040 0.050
1010 0.08-0.13 0.30-0.60 0.040 0.050
1018 0.15-0.20 0.60-0.90 0.040 0.050
1020 0.18-0.23 0.30-0.60 0.040 0.050
1025 0.22-0.28 0.30-0.60 0.040 0.050
1026 0.22-0.28 0.60-0.90 0.040 0.050
4130 0.28-0.33 0.40-0.60 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25
4140 0.38-0.43 0.75-1.00 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25
Mechanical Properties of ASTM A519:
Grade Condition MPa Tenslle Point Yield Point Elongation
1020 CW

≥414

≥483 ≥5%
SR ≥345 ≥448 ≥10%
A ≥193 ≥331 ≥30%
N ≥234 ≥379 ≥22%
1025 CW ≥448 ≥517 ≥5%
SR ≥379 ≥483 ≥8%
A ≥207 ≥365 ≥25%
N ≥248 ≥379 ≥22%
4130 SR ≥586 ≥724 ≥10%
A ≥379 ≥517 ≥30%
N ≥414 ≥621 ≥20%
4140 SR ≥689 ≥855 ≥10%
A ≥414 ≥552 ≥25%
N ≥621 ≥855 ≥20%

Please note the meaning of below abbreviation in table 2:

  • HR—-Hot Rolled
  • CW—-Cold Worked
  • SR—-Stress Relieved
  • A—-Annealed
  • N—-Normalized
Dimension Tolerances
Pipe Type  Pipe Sizes   Tolerances 
Cold drawn OD ≤48.3mm ±0.40mm
WT ≥60.3mm ±1%mm


ASTM A519 grade 4130

A519 grade 4130 - ASTM A519
A519 Gr.4130 standards applicated in the seamless alloy pipe

Its performance is much higher than the average of seamless steel tubes, because the steel contains Cr more inside, alloy seamless pipe, its high temperature, low temperature resistance, corrosion resistance is smaller than other seamless. 
Especially, it need to do the quenched & tempered and has a high technical requirements. so alloy tube in the petroleum, chemical, electric power, boiler and other industries use more widely.

Chemical composition (%)

 Grade  C  Mn  P  S  Si  Cr  Mo
 4130  0.28-0.33  0.40-0.60  0.035  0.04  0.15-0.35  0.80-1.10  0.15-0.25

Mechanical properties (Mpa)

 Grade  Tenslle strength  Yield strength  Elongation  RB
 4130  785  930  12  229


ASTM A519-89/ASME SA519 Material comparison tables

Seamless mechanical tubing is manufactured from carbon and alloy steels for structural or other mechanical purposes involving machining or heat treating, where close tolerances, smooth finish, or definite physical properties are important factors.
1. Scope

1.1 this specification covers several frades of carbon and alloy steel seamless mechanical tubing. The frades anr listed in Tables 1, 2, and 3. When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the frade, the condition of the components, and the intended service.1.2 This specification covers both seamless hot-finished emchanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3/4 in.(322.8mm) outside diameter of rround tubes with wall thicknesses as required.1.3 The tubes shall be furnished in the following shapes, as specified by the purchaser:round, square, rectagular, and special sections.1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.1.5 The values stated in inch-pround units are to be regarded as the standard.

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

G3445
STKM11A
C
A512
MT1010
C
1717
ERWC1
C
2391
St30Si
C
3304
R28
C
C017
A513
MT1010
C
St30A1
C
3305
C
2393
St28
C
3306
C
RSt28
C
2394
St28
C
USt28
C
RSt28
C
STKM12A
C
A512
MT1015
C
1717
ERWC2
C
2391
St37-2
3304
R33
C
A513
MT1015
C
6323
HFS3
C
RSt37-2
3305
STKM12B
C
A512
MT1015
C
2394
St37-2
3306
A513
MT1015
C
Ust38-2
A519
MT1015
C
RSt-2
STKM12C
C
1717
CEWC2
C
A49-322
TU37b
C
CFSC3
C
A49-327
TU37b
C
6323
CFS3
C
CFS3A
C
STKM13A
C
A312
MT1020
C
1717
ERWC3
C
2391
St45
C
A49-324
TU37b
C
2937
TS4
C
A513
MT1020
C
2393
St44-2
C
A49-330
TU37b
C
3304
R37
2394
St44-2
C
A49-343
TU38b
C
3305
STKM13B
C
A513
MT1020
C
3306
STKM13C
C
1717
CEWC3
C
CFSC4
C
6323
CFS4
C
STKM14A
C
A513
MT1020
C
6323
HFS4
C
2937
TS9
C
3304
R42
STKM14B
C
6323
HFS5
C
3305
R42
C
STMK14C
C
3306
STKM15A
C
A513
1030
C
A519
1030
C
STKM15C
STKM16A
C
A519
1040
C
A49-311
TUXC35
C
A49-312
TUXC35
C
STKM16C
C
STKM17A
C
A519
1050
C
6323
HFS8
C
STKM17C
C
6323
CFS8
C
STKM18A
C
A519
1518
C
1717
ERWC5
C
A49-310
TU52b
C
A49-311
TU52b
C
A49-312
TU52b
C
STKM18B
C
A49-321
TU52b
C
A49-323
TU52b
C
A49-326
TU52b
C
STKM18C
C
A49-330
TU52b
C
A49-341
TS42a
C
TS47a
C
A49-343
TS18M5
C
STKM19A
C
A519
1524
C
2391
ST52
C
2937
TS18
C
2393
ST52-3
C
2938
Gr.1
C
2394
ST52-3
C
3304
R50
C
3305
R50
C
3306
R50
C
STKM20A
C
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

G3441
SCr420TK
Cr
C018
SCM415TK
CrMo
SCM418TK
CrMo
6323
CFS10
CrMo
SCM420TK
CrMo
A519
5120
CrMo
SCM430TK
CrMo
A519
4130
CrMo
SCM435TK
CrMo
A519
4135
CrMo
SCM440TK
CrMo
A519
4140
CrMo
6323
CFS10
CrMo

ASTM A519-89/ASME SA519 Standard specification

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

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 (%)

Grade

C Mn P≤ S≤ Si Cr Mo
1008

≤0.10

0.30-0.50 

0.040 0.050
1010 0.08-0.13 0.30-0.60 0.040 0.050
1018 0.15-0.20 0.60-0.90 0.040 0.050
1020 0.18-0.23 0.30-0.60 0.040 0.050
1025 0.22-0.28 0.30-0.60 0.040 0.050
1026 0.22-0.28 0.60-0.90 0.040 0.050
4130 0.28-0.33 0.40-0.60 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25
4140 0.38-0.43 0.75-1.00 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25
Mechanical Properties
Grade Condition MPa Tenslle Point Yield Point Elongation
1020 CW

≥414

≥483 ≥5%
SR ≥345 ≥448 ≥10%
A ≥193 ≥331 ≥30%
N ≥234 ≥379 ≥22%
1025 CW ≥448 ≥517 ≥5%
SR ≥379 ≥483 ≥8%
A ≥207 ≥365 ≥25%
N ≥248 ≥379 ≥22%
4130 SR ≥586 ≥724 ≥10%
A ≥379 ≥517 ≥30%
N ≥414 ≥621 ≥20%
4140 SR ≥689 ≥855 ≥10%
A ≥414 ≥552 ≥25%
N ≥621 ≥855 ≥20%

Please note the meaning of below abbreviation in table 2:

  • HR—-Hot Rolled
  • CW—-Cold Worked
  • SR—-Stress Relieved
  • A—-Annealed
  • N—-Normalized

Source: China Alloy Steel Pipe Manufacturer – Yaang Pipe Industry (www.steeljrv.com)

(Yaang Pipe Industry is a leading manufacturer and supplier of nickel alloy and stainless steel products, including Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.)

If you want to have more information about the article or you want to share your opinion with us, contact us at sales@steeljrv.com
Please notice that you might be interested in the other technical articles we’ve published:

  • How to get high quality alloy steel pipes
  • Knowledges of seamless steel pipes
  • How to get high quality stainless steel pipes
  • What is a welded steel pipe
  • Difference between galvanized steel pipe and seamless steel pipe
  • The difference between steel tubes and steel pipes
  • How to get high quality steel pipes
  • How to get high quality carbon steel pipes
  • How To Distinguish Inferior Steel Pipe
  • What is the difference between a steel pipe and a steel tube
  • Manufacturing process of cold rolled steel pipe
  • Cold Working Processes of Steel Pipes
  • The cutting processing technology of stainless steel pipe
  • The production process of welded stainless steel pipe
 • How to get high quality astm a335 chrome moly pipe
 • What is a welded steel pipe
 • How to get high quality ASTM A333 alloy pipes

References:

  • https://www.yaang.com
  • https://www.astm.org/Standards/A519.htm

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