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ASTM A691-98(2002)

Historical Reaffirmation

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

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1.1 This specification 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. (405 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 .

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 PipeRadiography, see Section Pressure Test, see Section
10nonenonenone
11none9none
12none98.3
13nonenone8.3
20 stress relieved, see 5.3.1none none
21stress relieved, see 5.3.19none
22 stress relieved, see 5.3.198.3
23 stress relieved, see 5.3.1none 8.3
30normalized, see 5.3.2 none none
31normalized, see 5.3.29none
32normalized, see 5.3.298.3
33normalized, see 5.3.2 none 8.3
40normalized and tempered, see 5.3.3none none
41 normalized and tempered, see 5.3.39none
42 normalized and tempered, see 5.3.398.3
43 normalized and tempered, see 5.3.3none 8.3
50 quenched and tempered, see 5.3.4none none
51quenched and tempered, see 5.3.49none
52 quenched and tempered, see 5.3.498.3
53 quenched and tempered, see 5.3.4none 8.3
Note 1—Selection of materials should be made with attention to temperature of service. For such guidance, Specification A 20/A 20M may be consulted.

1.4 Optional requirements of a supplementary nature are provided, calling for additional tests and control of repair welding, when desired.

1.5 The values stated in inch-pound units are to be regarded as the standard.


SDO ASTM: ASTM International
Document Number A691
Publication Date June 10, 1998
Language en - English
Page Count 6
Revision Level 98(2002)
Supercedes
Committee A01.09
Publish Date Document Id Type View
June 10, 1998 A0691-98 Revision
Nov. 1, 2007 A0691-98R07 Reaffirmation
June 10, 1998 A0691-98R02 Reaffirmation