ASTM A 358/A 358M – 95a: Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service

ASTM A 358/A 358M – 95a

Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service

This specification covers electric-fusion-welded austenitic chromium-nickel alloy steel pipe suitable for high temperature and general corrosive service.

Dimensions and Tolerances

  • Dimensions. This specification assumes NPS8 minimum, although there is no restriction.

  • Tolerances. ASTM pipe general requirements, page 2-2, apply unless otherwise stated below.

  • Outside Diameter. ±0.5% of specified OD.

  • Wall Thickness. Minimum wall thickness shall be <0.01 in (0.3 mm) under nominal thickness.

  • Out-of-Roundness. Major and minor outside diameters to differ by less than 1%.

  • Alignment. The gap between the pipe and a 10ft (3 m) straight edge shall <1/8 in (3 mm)

  • Length. Specified by purchaser. Circumferential

    Manufacture

  • Material. Refer to chemical composition table.

  • Welding: All joints full penetration, double welded or single welded butt joints employing fusion welding process. Backing strips or rings, if used, must be removed after welding. Filler metal specifications detailed in A 358 are not included in this summary.

  • Pipe ClassesClass 1 – Double welded by a process employing filler metal in all passes and completely radiographed. Class 2 – Double welded by a process employing filler metal in all passes. No radiography required. Class 3 – Single welded by a process employing filler metal in all passes and completely radiographed. Class 4 – As class 3 except the inside pipe surface weld may be made without filler metal. Class 5 – Double welded by a process employing filler metal in all passes. Spot radiography required.

  • Heat treatment. Refer to heat treatment table and supplementary requirement S5.

  • Marking on each length of pipe: Manufacturers name or brand, specification number, ‘WR’ if weld repaired, ‘NPS’ and schedule, ‘NH’ if no hydrotesting, Class number. Also final heat temperature: ‘HT-O’ if no final heat treatment, ‘HT-temp’ where ‘temp’ is the final stabilising treatment temperature if specified in Supplementary Requirement S5.

    Finish and Repair

  • Appearance. Finished pipe will have a workmanlike finish.

  • Plate Defect Repair by Grinding. Defects may be repaired by machining or grinding, provided the wall thickness is not reduced below the minimum.

  • Plate Defect Repair by Welding. Defects which give unsatisfactory wall thickens can be repaired by welding if the purchaser agrees. Repair welds must be suitably NDT examined or lengths pressure tested if repair depth is >1/4 wall thickness.

  • Finish. Pipe will be free of scale and contaminating iron particles. Bright annealed pipe need not be pickled, or blasted. The purchaser may request a passivating treatment.

    Ordering Information

    Item

    Notes

    Specification number

    ASTM A 358/A 358M-95a

    Size

    Nominal pipe size or outside diameter. Schedule or average wall thickness.

    Quantity

    Random or specified lengths. Total length or number of lengths.

    Name of material

    Electric-fusion-welded austenitic stainless steel pipe.

    Class

    Class 1, 2, 3, 4 or 5 -see manufacturing data

    Grade

    Selected from chemical composition table

    Applicable ASME Code

    If known. For ASME Code Section III applications, intended service classification and certification requirements are required

    End finish

    Plain ends with all burrs removed is ASTM requirement. Bevelled, or other end finishes can be specified

    Test report

    DIN 50049.3.1.B standard, or DIN 50049.3.1.C optional (3rd party witness test) at extra cost

    Options and supplementary requirements

    Refer to optional and supplementary requirements S1 to S6

    Note

    – The above table is based on ASTM requirements except with regard to alternative end finishes and test reports, where standard practice options are added. See also page 10-2 for ISO based ordering and general delivery information.

    Mandatory Testing

  • Heat Analysis. Performed on test ingot taken during pouring of heat. Conformance with chemical composition table (as A 240) is required.

  • Transverse Tension Test. One test made to represent each lot. A lot is pipe of the same grade, welded to the same procedure and with a common heat treatment. The maximum lot size is 200 ft (60 m) of pipe.

  • Transverse Guided-Bend Weld Test. One test, two specimens will be tested for each lot.

  • Hydrostatic Test. Each pipe will be tested unless agreed by purchaser.

  • Radiographic Examination. Classes 1,3 and 4 will have all welded joints radiographically examined. Class 5 pipe will be spot radiographic tested over not less than 12 in (300 mm) in each 50 ft (15 m) of pipe. This examination may be prior to heat treatment.

    Optional and Supplementary Requirements

  • Passivating Treatment may be requested by purchaser.

  • Circumferential Welds may be permitted by purchaser.

  • Filler Metal. High alloy filler metal may be specified for improved corrosion resistance.

  • Repair of Plate Defects may be authorised. S1 Product Analysis. Each length of pipe will be

  • analysed.

  • S1 Tension and Bend Tests. Test will be made on specimens to represent each length of pipe.

  • S1 Penetrant Oil and Powder Test. All welded joints will be examined by a penetrant oil and powder method. Methods to be agreed between purchaser and vendor.

  • S1 Ferrite Control in Weld Deposits. Ferrite content of the deposited weld metal will be determined using a method agreed between

  • purchaser and vendor.

  • S1 Stabilising Heat Treatment. Grades 321, 347 and 348 can be given a stabilisation heat treatment at a temperature lower than that used for the initial solution annealing heat treatment. Temperature to be agreed between purchaser and vendor.

  • S1 Intergranular Corrosion Test. Performed in accordance with Practice A 262, Practice E.

  • S5 may be necessary to meet this requirement for grades containing Titanium or Niobium.

Tensile Requirements

Grade

UNS

Tensile Strength min

Yield Strength min

Elongation in 2 in (50 mm) min

ksi

MPa

ksi

MPa

%

All

All

75

515

30

205

40

TP304L

S30403

70

485

25

170

40

TP304N

S30451

80

550

35

240

30

TP316L

S31603

70

485

25

170

40

TP316N

S31603

80

550

35

240

35

TPXM-19

S20910

100

690

55

380

35

TPXM-29

S24000

100

690

55

380

40

S31254

94

650

44

300

35

S30815

87

600

45

310

40

S30600

78

540

35

240

40

S31726

80

550

35

240

40

S24565

115

795

60

415

35

S30415

87

600

42

290

40

S32654

109

750

62

430

40

N08367

95

655

45

310

30

Notes

  • All = All grades listed in the chemical composition table other than those itemised in this table.

  • S24565 is not listed in ASTM A 240. The UNS designation may be S34565, if ASTM A 358 is in error.

1 Transverse tension tests across welded joint specimens ensure the tensile strength is not less than the minimum specified for the plate in ASTM A 240/A 240M. Values in this table are therefore extracted from A 240.

Heat Treatment

Grade

UNS

Temperature °F

Temperature °C

Treatment

All

All

1900

1040

Minimum heat treatment temperature. Quench1

S31254

2100

1150

Minimum heat treatment temperature. Quench1

S30815

1920

1050

Minimum heat treatment temperature. Quench1

S24565

2050

1120

Minimum heat treatment temperature. Quench1

S32654

2100

1150

Minimum heat treatment temperature. Quench1

N08367

2025

1107

Minimum heat treatment temperature. Quench1

Notes

– All = All grades listed in the chemical composition table other than those itemised in this table.

Chemical Composition

Grade

UNS

Composition Percentage, max or range

&DUERn

C

0DQJDQHVe

Mn

3KRVSKRUXs

P

6XOSKXr

S

6LOLFRn

Si

1LFNHlNi

&KURPLXm Cr

0RO\EGHQXmMo

Note

TP304

S30400

0.08

2.00

0.045

0.030

0.75

8.00-

10.50

18.00-20.00

15

TP304L

S30403

0.030

2.00

0.045

0.030

0.75

8.00-

12.00

18.00-20.00

15

TP304N

S30451

0.08

2.00

0.045

0.030

0.75

8.00-

10.50

18.00-20.00

1

TP304LN

S30453

0.030

2.00

0.045

0.030

0.75

8.00-

12.00

18.00-20.00

1

TP309H

S30909

0.04-

0.10

2.00

0.045

0.030

0.75

12.0-

15.0

22.00-24.00

TP309Cb

S30940

0.08

2.00

0.045

0.030

0.75

12.00-

16.00

22.00-24.00

2

TP309S

S30908

0.08

2.00

0.045

0.030

0.75

12.00-

15.00

22.00-24.00

TP310Cb

S31040

0.08

2.00

0.045

0.030

1.50

19.00-

22.00

24.00-26.00

2

TP310H

S31009

0.04-

0.10

2.00

0.045

0.030

0.75

19.00-

22.00

24.00-26.00

TP310S

S31008

0.08

2.00

0.045

0.030

1.50

19.00-

22.00

24.00-26.00

TP316

S31600

0.08

2.00

0.045

0.030

0.75

10.00-

14.00

16.00-18.00

2.00-3.00

15

TP316L

S31603

0.030

2.00

0.045

0.030

0.75

10.00-

14.00

16.00-18.00

2.00-3.00

15

TP316N

S31651

0.08

2.00

0.045

0.030

0.75

10.00-

14.00

16.0-18.0

2.00-3.00

1

TP316LN

S31653

0.030

2.00

0.045

0.030

0.75

10.00-

14.00

16.00-18.00

2.00-3.00

1

TP316H

S31609

0.04-

0.10

2.00

0.045

0.030

0.75

10.00-

14.00

16.00-18.00

2.00-3.00

TP321

S32100

0.08

2.00

0.045

0.030

0.75

9.00-

12.00

17.00-19.00

12,15

TP347

S34700

0.08

2.00

0.045

0.030

0.75

9.00-

13.00

17.00-19.00

13

TP348

S34800

0.08

2.00

0.045

0.030

0.75

9.00-

13.00

17.00-19.00

14

TPXM-19

S20910

0.06

4.00-6.00

0.040

0.030

0.75

11.50-

13.50

20.50-23.5

1.50-3.00

3

TPXM-29

S24000

0.08

11.50-

14.50

0.060

0.030

0.75

2.25-

3.75

17.00-19.00

4

S31254

0.020

1.00

0.030

0.010

0.80

17.50-

18.50

19.50-20.50

6.00-6.50

5

S30815

0.05-

0.10

0.80

0.040

0.030

1.40-

2.00

10.00-

12.00

20.00-22.00

7

S31725

0.030

2.00

0.045

0.030

0.75

13.50-

17.50

18.00-20.00

4.0-5.0

8

S31726

0.030

2.00

0.045

0.030

0.75

13.50-

17.50

17.00-20.00

4.0-5.0

9

TPXM-17

S21600

0.08

7.50-9.00

0.045

0.030

0.75

5.00-

7.00

17.50-22.00

2.00-3.00

17

S34565

0.030

5.00-7.00

0.030

0.010

1.00

16.00-

18.00

23.00-25.00

4.00-5.00

10

S30415

0.04-

0.06

0.80

0.045

0.030

1.00-

2.00

9.00-

10.00

18.00-19.00

6

S32654

0.020

2.00-4.00

0.030

0.005

0.50

21.00-

23.00

24.00-25.00

7.00-8.00

11

N08367

0.030

2.00

0.040

0.030

1.00

23.50-

25.50

20.00-22.00

6.00-7.00

16

Notes

  • Heat analysis and chemical composition requirements are specified to be as for the plate in ASTM A 240/A 240M – 96. Values in this table are therefore extracted from ASTM A 240/A 240M – 96.

    Additional tolerances for product analysis testing (detailed in ASTM A 480/A 480M) are not included in this summary.

  • S24565 is not listed in ASTM A 240. The UNS designation may be S34565, if ASTM A 358 is in error.

    Composition Notes

    1 Nitrogen 0.10-0.16%

    2 Niobium: 10 x Carbon min, 1.10% max

    3 Niobium 0.10-0.30%, Nitrogen 0.20-0.40%,

    4 Nitrogen 0.20-0.40%

    5 Nitrogen 0.18-0.22%, Copper 0.50-1.00%

    6 Nitrogen 0.12-0.18%, Cerium 0.03-0.08%

    7 Nitrogen 0.14-0.20%, Cerium 0.03-0.08%

    8 Nitrogen 0.20% max

    9 Nitrogen 0.10-0.20%

    10 Niobium 0.1% max, Nitrogen 0.40-0.60%

    11 Nitrogen 0.45-0.55%, Copper 0.30-0.60% 12 Titanium: 5 x (Carbon + Nitrogen)% min, 13 Niobium:10 x Carbon% min, 1.00% max 14 Niobium + Tantalum: 10 x Carbon% min, 15 Nitrogen 0.10% max

    16 Nitrogen 0.18-0.25%, Copper 0.75% max

    17 Nitrogen 0.25-0.50%

    Note

  • Niobium is sometimes referred to as Columbium.

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