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  • ASTM A691/A691M-19

ASTM A691/A691M-19

Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures

ASTM International, 11/01/2019

Publisher: ASTM

File Format: PDF

$25.00$50.00


Published:01/11/2019

Pages:7

File Size:1 file , 110 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

1.1 This specification2 covers carbon and alloy steel pipe, electric-fusion-welded with filler metal added, fabricated from pressure-vessel-quality plate of several analyses and strength levels and suitable for high-pressure service at high temperatures. Heat treatment may or may not be required to attain the desired mechanical properties or to comply with applicable code requirements. Supplementary requirements are provided for use when additional testing or examination is desired.

1.2 The specification nominally covers pipe 16 in. [400 mm] in outside diameter and larger with wall thicknesses up to 3 in. [75 mm] inclusive. Pipe having other dimensions may be furnished provided it complies with all other requirements of this specification.

1.3 Several grades and classes of pipe are provided.

1.3.1 Grade designates the type of plate used as listed in Table 1.

1.3.2 Class designates the type of heat treatment performed in the manufacture of the pipe, whether the weld is radiographically examined, and whether the pipe has been pressure tested as listed in 1.3.3.

1.3.3 Class designations are as follows (Note 1):

Class

Heat Treatment on Pipe

Radiography, see Section

Pressure Test, see Section

 

 

 

 

10

none

none

none

11

none

9

none

12

none

9

8.3

13

none

none

8.3

20

stress relieved, see 5.3.1

none

none

21

stress relieved, see 5.3.1

9

none

22

stress relieved, see 5.3.1

9

8.3

23

stress relieved, see 5.3.1

none

8.3

30

normalized, see 5.3.2

none

none

31

normalized, see 5.3.2

9

none

32

normalized, see 5.3.2

9

8.3

33

normalized, see 5.3.2

none

8.3

40

normalized and tempered, see 5.3.3

none

none

41

normalized and tempered, see 5.3.3

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