ASTM A858/A858M-10a

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


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    1. Scope

    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, MSS SP-75, MSS SP-79, MSS SP-83, MSS SP-95, or MSS SP-97. Fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A960/A960M. 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 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. Unless the other specifies the applicable M specification designation (SI units), the material shall be furnished to inch-pound units.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A960/A960M Specification for Common Requirements for Wrought Steel Piping Fittings


    ICS Code

    ICS Number Code 23.040.40 (Metal fittings)

    UNSPSC Code

    UNSPSC Code 40170000(Pipe piping and pipe fittings)


    Referencing This Standard

    DOI: 10.1520/A0858_A0858M-10A

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A858 / A858M-10a, Standard Specification for Heat-Treated Carbon Steel Fittings for Low-Temperature and Corrosive Service, ASTM International, West Conshohocken, PA, 2010, www.astm.org

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