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ASTM A858/A858M-07

Historical Revision

Standard Specification for Heat-Treated Carbon Steel Fittings for Low-Temperature and Corrosive Service

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1.1 This specification covers heat-treated wrought carbon steel piping fittings with lowered carbon content of seamless and electric fusion-welded construction covered by the latest revisions in ASME B16.9, ASME B16.11, ASME B16.28, MSS-SP-75, MSS-SP-79, MSS-SP-83, or MSS-SP-95. Fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A 960/A 960M. These fittings are for use in pressure components where inherent notch toughness and optimum sulfide-cracking resistance are required, such as oil and gas industry piping and distribution systems.

1.2 Optional supplementary requirements are provided for fittings when a greater degree of examination is desired. One or more of the supplementary requirements may be specified in the order.

1.3 This specification does not cover cast-welding fittings or fittings machined from castings.

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. Combining values from the two systems may result in nonconformance with this specification. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Unless the other specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.


This specification covers heat-treated wrought carbon steel piping fittings with lowered carbon content of seamless and electric fusion-welded construction for low-temperature and corrosive service applications. These fittings are for use in pressure components where inherent notch toughness and optimum sulfide-cracking resistance are required, such as oil and gas industry piping and distribution systems. The materials shall be manufactured by forging and shaping methods which involves hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of these operations. Fittings shall be heat treated by normalizing, quenching, and tempering or stress-relieving. Product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, and copper. The fittings shall undergo tension and impact tests, and shall conform to the following mechanical requirements: yield strength, tensile strength, elongation, and notch toughness.


SDO ASTM: ASTM International
Document Number A858
Publication Date March 1, 2007
Language en - English
Page Count 4
Revision Level 07
Supercedes
Committee A01.22
Publish Date Document Id Type View
July 1, 2024 A0858_A0858M-24 Revision
Dec. 1, 2019 A0858_A0858M-19 Revision
Oct. 1, 2014 A0858_A0858M-14 Revision
Oct. 1, 2013 A0858_A0858M-13 Revision
Nov. 1, 2010 A0858_A0858M-10A Revision
May 1, 2010 A0858_A0858M-10 Revision
May 1, 2009 A0858_A0858M-09 Revision
March 1, 2007 A0858_A0858M-07 Revision
March 1, 2006 A0858_A0858M-06 Revision
Sept. 10, 2000 A0858_A0858M-00 Revision
Sept. 10, 2000 A0858_A0858M-00R05 Reaffirmation