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ASTM A 269/A269M : 2024

ASTM A 269/A269M : 2024

Current

Current

The latest, up-to-date edition.

Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

12-03-2024

Publisher

American Society for Testing and Materials

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Hardcopy - English
PDF - English
01
02
03
04
05
06
07
08
09
10

Committee
A 01
DocumentType
Standard
Pages
7
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

1.1This specification covers grades of nominal-wall-thickness, stainless steel tubing for general corrosion-resisting and low- or high-temperature service, as designated in Table 1.

Grade

Composition, %

TP
XM-29

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

UNS DesignationA

S24000

S31254

S31266

S31725

S31726

S31727

S32053

S30600A

S32654

S34565

S35045

S35030

N08367

N08925

N08926

N08904

Carbon

0.08

0.020

0.030
max

0.035

0.035

0.030

0.030

0.018

0.020

0.030

0.06–
0.10

0.05–0.10

0.030

0.020

0.020

0.020

Manganese

11.5–
14.5

1.00

2.00–4.00

2.00

2.00

1.00

1.00

2.0

2.0–
4.0

5.0–
7.0

1.50

1.50

2.00

1.00

2.00

2.00

Phosphorus

0.060

0.030

0.035

0.045

0.045

0.030

0.030

0.020

0.030

0.030

0.045

0.030

0.040

0.045

0.030

0.040

Sulfur.

0.030

0.015

0.020

0.030

0.030

0.030

0.010

0.020

0.005

0.010

0.015

0.015

0.030

0.030

0.010

0.030

Silicon

1.00

0.80

1.00

1.00

1.00

1.00

1.00

3.7–4.3

0.50

1.00

1.00

0.50–2.0

1.00

0.50

0.50

1.00

Nickel

2.3–
3.7

17.5–
18.5

21.0–24.0

13.5–
17.5

14.5–
17.5

14.5–
16.5

24.0–
26.0

14.0–
15.5

21.0–
23.0

16.0–
18.0

32.0–
37.0

22.5–
27.5

23.5–
25.5

24.0–26.0

24.0–
26.0

23.0–
28.0

Chromium

17.0–
19.0

19.5–
20.5

23.0–25.0

18.0–
20.0

17.0–
20.0

17.5–
19.0

22.0–
24.0

17.0–
18.5

24.0–
25.0

23.0–
25.0

25.0–
29.0

18.5–22.5

20.0–
22.0

19.0–21.0

19.0–
21.0

19.0–
23.0

Molybdenum

...

6.0–
6.5

5.2–6.2

4.0–
5.0

4.0–
5.0

3.8–
4.5

5.0–
6.0

0.20
max

7.0–
8.0

4.0–
5.0

. . .

6.0–
7.0

6.0–7.0

6.0–
7.0

4.0–
5.0

Titanium

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

0.15–
0.60

. . .

. . .

. . .

. . .

. . .

Columbium

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

0.10
max

. . .

0.25–0.75

. . .

. . .

. . .

. . .

Tantalum

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

NitrogenF

0.20–
0.40

0.18–
0.25

0.35–0.60

0.20
max

0.10–
0.20

0.15–
0.21

0.17–
0.22

0.45–
0.55

0.40–
0.60

. . .

0.05–0.15

0.18–
0.25

0.10–0.20

0.15–
0.25

0.10
max

Vanadium

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .

 Copper

. . .

0.50–
1.00

1.00–2.50

. . .

. . .

2.8–
4.0

. . .

0.50
max

0.30–
0.60

. . .

0.75

2.5–3.5

0.75
max

0.80–1.50

0.50–
1.50

1.00–
2.00

 Others

. . .

. . .

W 1.50–2.50

. . .

. . .

. . .

. . .

. . .

. . .

. . .

Al
0.15–
0.60

. . .

. . .

. . .

. . .

. . .

1.2The tubing sizes and thicknesses usually furnished to this specification are 1/4in. [6.4 mm] in inside diameter and larger and 0.020 in. [0.51 mm] in nominal wall-thickness and heavier.

1.3Mechanical property requirements do not apply to tubing smaller than 1/8in. [3.2 mm] in inside diameter or 0.015 in. [0.38 mm] in thickness.

Note 1:Additional testing requirements may apply for use in ASME B31.3 applications.

1.4Optional supplementary requirements are provided and, when one or more of these are desired, each shall be so stated in the order.

1.5The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, 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 specification is specified in the order.

1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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