ASTM-A671/A671M:2016 Edition

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A671/A671M-16a Standard Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures

Published By	Publication Date	Number of Pages
ASTM	2016	7

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Categories: 23.040.10 - Iron and steel pipes, ASTM

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Description

ASTM A671/A671M-16a

Historical Standard: Standard Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures

ASTM A671/A671M

Scope

1.1 This specification2 covers electric-fusion-welded steel pipe with filler metal added, fabricated from pressure vessel quality plate of several analyses and strength levels and suitable for high-pressure service at atmospheric and lower 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 and of ¹/₄ in. [6 mm] wall thickness or greater. 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 5.1.

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):

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.

Keywords

ICS Code

ICS Number Code 23.040.10 (Iron and steel pipes)

DOI: 10.1520/A0671_A0671M-16A

Additional information

32	normalized, see 5.3.2
43	normalized and tempered, see 5.3.3
21	stress relieved, see 5.3.1
42	normalized and tempered, see 5.3.3
20	stress relieved, see 5.3.1
41	normalized and tempered, see 5.3.3
40	normalized and tempered, see 5.3.3
Class	Heat Treatment on Pipe
13	none
12	none
33	normalized, see 5.3.2
11	none
10	none
53	quenched and tempered, see 5.3.4
31	normalized, see 5.3.2
52	quenched and tempered, see 5.3.4
30	normalized, see 5.3.2
73	quenched and precipitation heat treated
51	quenched and tempered, see 5.3.4
72	quenched and precipitation heat treated
50	quenched and tempered, see 5.3.4
71	quenched and precipitation heat treated
70	quenched and precipitation heat treated
23	stress relieved, see 5.3.1
22	stress relieved, see 5.3.1
ICS Codes	23.040.10 - Iron and steel pipes