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ASTM A420/A420M-01

Historical Revision

Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service

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1.1 This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction, covered by the latest revision of ASME B16.9, ASME B16.11, ASME B16.28, MSS-SP-79, and MSS SP-95. Fittings differing from these ASME and MSSVF standards shall be furnished in accordance with Supplementary Requirement S6. These fittings are for use in pressure piping and pressure vessel service at low temperatures.

1.2 Optional supplementary requirements are provided for fittings where a greater degree of examination is desired. When desired, one or more of these supplementary requirements shall be specified in the order.

1.3 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.

1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.


SDO ASTM: ASTM International
Document Number A420
Publication Date May 10, 2002
Language en - English
Page Count 6
Revision Level 01
Supercedes
Committee A01.22
Publish Date Document Id Type View
Oct. 15, 2024 A0420_A0420M-24A Revision
April 1, 2024 A0420_A0420M-24 Revision
Nov. 1, 2022 A0420_A0420M-22 Revision
March 1, 2020 A0420_A0420M-20 Revision
Nov. 1, 2019 A0420_A0420M-19A Revision
Sept. 1, 2019 A0420_A0420M-19 Revision
May 1, 2016 A0420_A0420M-16 Revision
Oct. 1, 2014 A0420_A0420M-14 Revision
Oct. 1, 2013 A0420_A0420M-13 Revision
Nov. 1, 2010 A0420_A0420M-10A Revision
May 1, 2010 A0420_A0420M-10 Revision
March 1, 2007 A0420_A0420M-07 Revision
March 1, 2006 A0420_A0420M-06 Revision
June 1, 2005 A0420_A0420M-05 Revision
May 1, 2004 A0420_A0420M-04 Revision
Oct. 1, 2003 A0420_A0420M-03 Revision
May 10, 2002 A0420_A0420M-02 Revision
May 10, 2002 A0420_A0420M-01 Revision
May 10, 2002 A0420_A0420M-00B Revision
May 10, 2002 A0420_A0420M-00A Revision
Not Available A0420_A0420M-96 Revision