Name: ASTM A 381 : 1996 : R2012
Brand: ASTM
Price: 62.61 GBP

ASTM A 381 : 1996 : R2012

Superseded

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Standard Specification for Metal-Arc-Welded Steel Pipe for Use With High-Pressure Transmission Systems

Available format(s)

Hardcopy , PDF

Superseded date

16-11-2023

Language(s)

English

Published date

01-03-2012

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 01.01, 2017 Describes the straight seam, double-submerged-arc-welded steel pipe suitable for high-pressure service, 16 in. (406 mm) and larger in outside diameter, with wall thicknesses from 5/16 to 1[1/2] in. (7.9 to 38 mm).

1.1This specification covers straight seam, double-submerged-arc-welded steel pipe (Note 1) suitable for high-pressure service, 16 in. (406 mm) and larger in outside diameter, with wall thicknesses from ⁵/₁₆to 1¹/₂in. (7.9 to 38 mm). The pipe is intended for fabrication of fittings and accessories for compressor or pump-station piping. Pipe ordered to this specification shall be suitable for bending, flanging (vastoning), corrugating, and similar operations.

Note 1—A comprehensive listing of standardized pipe dimensions is contained in ANSI B36.10 .

Note 2—The term “double welded” is commonly used in the gas and oil transmission industry, for which this pipe is primarily intended, to indicate welding with at least two weld passes, of which one is on the outside of the pipe and one on the inside. For some sizes of the pipe covered by this specification, it becomes expedient to use manual welding, in which case the provisions of Note 3 shall be followed.

1.2Nine classes of pipe, based on minimum yield point requirements, are covered as indicated in Table 1.

TABLE 1 Tensile Requirements

Class	Yield Strength, min, psi (MPa)	Tensile Strength, min, psi (MPa)	Elongation in 2 in. (50.8 mm), min, %
Y 35	35000 (240)	60000 (415)	26
Y 42	42000 (290)	60000 (415)	25
Y 46	46000 (316)	63000 (435)	23
Y 48	48000 (330)	62000 (430)	21
Y 50	50000 (345)	64000 (440)	21
Y 52	52000 (360)	66000 (455)	20
Y 56	56000 (385)	71000 (490)	20
Y 60	60000 (415)	75000 (515)	20
Y 65	65000 (450)	77000 (535)	20

1.3The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4The following caveat applies to the test methods portion, Sections 9 and 10, only. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Committee	A 01
DocumentType	Standard
Pages	5
ProductNote	Reconfirmed 2012
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM A 381/A381M : 2018
Supersedes	ASTM A 381 : 1996 : R2005

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