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ASTM SA/A358

ASTM SA/A358 Stainless Steel Pipe Specifications

ASTM A358/ASME SA358,Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service.

Grades:304, 304L, 310S, 316,316L,316H,317L,321,321H, 347, 347H...

Classes(CL):CL1,CL2,CL3,CL4,CL5

ASTM A358 CL1 - A358 304 Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.

ASTM A358 CL2 - A358 316L Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.

ASTM A358 CL3 - Pipe shall be single welded by processes employing filler metal in all passes and shall be completely radiographed.

ASTM A358 CL4 - Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal.

ASTM A358 CL5 - Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.


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Parameter Description

Outer diameter size: Electric Fusion Welded / ERW- 8" NB To 110" NB (Nominal Bore Size)

Wall thickness: Schedule 10 To Schedule 160 (3 mm to 100 mm Thickness)

Length: Single random length/ Double random length or as customer's actual request.


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ASTM A358 Chemical Composition

A358 GRADES

UNS

C

Mn

P

S

Si

Cr

Ni

Mo

Ti

Nb

N

TP304

S3040

0.08

2.0

0.045

0.030

1.0

18.0-20.0

8.0-11.0

TP304L

S30403

0.035

2.0

0.045

0.030

1.0

18.0-20.0

8.0-13.0

TP304H

S30409

0.04-0.10

2.0

0.045

0.030

1.0

18.0-20.0

8.0-11.0

TP304N

S30451

0.08

2.0

0.045

0.030

1.0

18.0-20.0

8.0-18.0

0.10-0.16

TP304LN

S30453

0.035

2.0

0.045

0.030

1.0

18.0-20.0

8.0-12.0

0.10-0.16

TP309S

S30908

0.08

2.0

0.045

0.030

1.0

22.0-24.0

12.0-15.0

0.75

TP309H

S30909

0.04-0.10

2.0

0.045

0.030

1.0

22.0-24.0

12.0-15.0

TP309Cb

S30940

0.08

2.0

0.045

0.030

1.0

22.0-24.0

12.0-16.0

0.75

10xC min
1.10 max

TP309HCb

S30941

0.04-0.10

2.0

0.045

0.030

1.0

22.0-24.0

12.0-16.0

0.75

10xC min
1.10 max

TP310S

S3108

0.08

2.0

0.045

0.030

1.0

24.0-26.0

19.0-22.0

0.75

TP310H

S3109

0.04-0.10

2.0

0.045

0.030

1.0

24.0-26.0

19.0-22.0

TP310Cb

S31040

0.08

2.0

0.045

0.030

1.0

24.0-26.0

19.0-22.0

0.75

10xC min
1.10 max

TP310HCb

S31041

0.04-0.10

2.0

0.045

0.030

1.0

24.0-26.0

19.0-22.0

0.75

10xC min
1.10 max

TP316

S3160

0.08

2.0

0.045

0.030

1.0

16.0-18.0

11.0-14.0

2.0-3.0

TP316L

S31603

0.035

2.0

0.045

0.030

1.0

16.0-18.0

10.0-14.0

2.0-3.0

TP316H

S31609

0.04-0.10

2.0

0.045

0.030

1.0

16.0-18.0

11.0-14.0

2.0-3.0

TP316Ti

S31635

0.08

2.0

0.045

0.030

0.75

16.0-18.0

10.0-14.0

2.0-3.0

5x
(C-N)
-0.70

0.10

TP316N

S31651

0.08

2.0

0.045

0.030

1.0

16.0-18.0

10.0-14.0

2.0-3.0

0.10-0.16

TP316LN

S31653

0.035

2.0

0.045

0.030

1.0

16.0-18.0

11.0-14.0

2.0-3.0

0.10-0.16

TP317

S3170

0.08

2.0

0.045

0.030

1.0

18.0-20.0

10.0-14.0

3.0-4.0

TP317L

S31703

0.035

2.0

0.045

0.030

1.0

18.0-20.0

11.0-15.0

3.0-4.0

TP321

S3210

0.08

2.0

0.045

0.030

1.0

17.0-19.0

9.0-12.0

0.10

TP321H

S32109

0.04-0.10

2.0

0.045

0.030

1.0

17.0-19.0

9.0-12.0

0.10

TP347

S3470

0.08

2.0

0.045

0.030

1.0

17.0-19.0

9.0-13.0

TP347H

S34709

0.04-0.10

2.0

0.045

0.030

1.0

17.0-19.0

9.0-13.0

TP347LN

S34751

0.05-0.02

2.0

0.045

0.030

1.0

17.0-19.0

9.0-13.0

0.20-
50.0

0.06-0.10

TP348

S3480

0.08

2.0

0.045

0.030

1.0

17.0-19.0

9.0-13.0

TP348H

S34809

0.04-0.10

2.0

0.045

0.030

1.0

17.0-19.0

9.0-13.0


ASTM A358 Mechanical Properties

Material

Heat
Treatment

Temperure
Min.
º F(º C)

Tensile Strength
Ksi (MPa), Min.

Yield Strength
Ksi (MPa), Min.

Elongation %, Min

TP304

Solution

1900 (1040)

75(515)

30(205)

35

TP304L

Solution

1900 (1040)

70(485)

25(170)

35

TP304H

Solution

1900 (1040)

75(515)

30(205)

35

TP310S

Solution

1900 (1040)

75(515)

30(205)

35

TP316

Solution

1900(1040)

75(515)

30(205)

35

TP316L

Solution

1900(1040)

70(485)

25(170)

35

TP316H

Solution

1900(1040)

75(515)

30(205)

35

TP316Ti

Solution

1900(1040)

75(515)

30(205)

35

TP321

Solution

1900(1040)

75(515)

30(205)

35

TP321H

Solution

Cold: 2000(1100)
Hot: 1925(1050)

75(515)

30(205)

35

TP347

Solution

1900(1040)

75(515)

30(205)

35

TP347H

Solution

Cold: 2000(1100)
Hot: 1925(1050)

75(515)

30(205)


ASTM A358 Equivalent

ASTM
STANDARD

UNS NO.

KOREA/JAPANES

GERMAN

BRITISH

FRENCH

ITALIAN

KS/JIS Symbol

KS/JIS Numbe

DIN Type

DIN Number

Materiral Number

Remarks

B.S Number

B.S Grade

Remarks

AFNOR Type

NF Number

Ramarks

UNI Type

UNI Number

Ramarks

A 358

Grade 304

S30400

STS 304TPY/
SUS310STPY

D3588 / G3468

X5 CrNi 18 9

17440

1.4301

(3b)

3605

304S25

LWHT(3b)

Z6 CN 18.09

A36-209

(3b)

X6 CrNi 18 10

8317

(3b)

Grade 310

S31000

STS 310STPY/
SUS310STPY

D3588 / G3468

X 12 CrNi 25 21

1.4845

WBL-470(3b)

(3)

A36-209

X22 CrNi 25 20

6900

(3b)(11)

Grade 316

S31600

STS 316TPY / SUS316TPY

D3588 / G3468

X5 CrNiMo 18 10

17440

1.4401

(3b)

3605

316S26

LWHT(3b)

Z6 CND 17.11

A36-209

(3b)

X6CrNiMo 17 12

8317

(3b)

Grade 321

S32100

STS 321TPY/
SUS 321TPY

D3588 / G3468

X10 CrNiTi 18 9

17440

1.4541

(3b)(17)

3605

321S22

LWHT(3b)

Z6 CNT 18.10

A36-209

(3b)

X6 CrNiTi 18 10

8317

(3b)

Grade 347

S34700

STS 347TPY/
SUS 347TPY

D3588 / G3468

X10 CrNiNb 18 9

17440

1.4550

(3b)(17)

3605

347S17

LWHT(3b)

Z6 CN Nb 18.10

A36-209

(3b)

X6 CrNiNb 18 10

8317

(3b)#nps


ASTM A358 Pipe Tolerances

NPS Designator

Permissible Variations in Outside Diameter

Over In.

Under In.

1/8 to 1-1/2, incl

1/64 (0.015)

1/32 (0.031)

Over 1-1/2 to 4, incl

1/32 (0.031)

1/32 (0.031)

Over 4 to 8, incl

1/16 (0.062)

1/32 (0.031)

Over 8 to 18, incl

3/23 (0.093)

1/32 (0.031)

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