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ASTM
A672/A672M-19(2025) Standard Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures
Edition: 2025
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Description of ASTM-A672/A672M 2025
ASTM A672/A672M-19-Reapproved2025
Active Standard: Standard Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures
ASTM A672/A672M
Scope
1.1 This specification covers steel pipe: electric-fusion-welded with filler
metal added, fabricated from pressure-vessel quality plate of any of several analyses and strength levels and suitable for high-pressure service at moderate temperatures. Heat treatment may or
may not be required to attain the desired 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 or 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.
1.3.2 Class designates the type of heat treatment performed during 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
|
9
|
none
|
|
42
|
normalized and tempered, see 5.3.3
|
9
|
8.3
|
|
43
|
normalized and tempered, see 5.3.3
|
none
|
8.3
|
|
50
|
quenched and tempered, see 5.3.4
|
none
|
none
|
|
51
|
quenched and tempered, see 5.3.4
|
9
|
none
|
|
52
|
quenched and tempered, see 5.3.4
|
9
|
8.3
|
|
53
|
quenched and tempered, see 5.3.4
|
none
|
8.3
|
Note 1: Selection of materials should be made with attention to temperature of service. For
such guidance, Specification A20/A20M may be consulted.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the 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.
1.5 This 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.
Keywords
ICS Code
ICS Number Code 23.040.10 (Iron and steel pipes)
DOI: 10.1520/A0672_A0672M-19R25
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