ASTM A727/A727M-00

    Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness


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    1. Scope

    1.1 This specification covers forged carbon steel piping components intended primarily for service in pressure piping systems from -20 to +650oF [-30 to +345oC] where inherent notch toughness is desired, but where notch toughness testing is not required. Included are forged or ring-rolled flanges, forged fittings, and valves made to specified dimensions, or to dimensional standards such as the ANSI and API specifications referenced in Section 2.

    1.2 This specification is limited to forgings with maximum finished section thicknesses no larger than 2 in. [51 mm].

    1.3 It shall be the responsibility of the purchaser to determine whether material meeting the requirements of this specification is satisfactory for the service application.

    1.4 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified by the purchaser in the order.

    Note 1--There are no provisions for impact testing in this specification. When impact testing is required, refer to Specification A350/A350M.

    1.5 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.

    1.6 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. Combining values from the two systems may result in nonconformance with the specification.


    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

    A350/A350M Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components

    A788/A788M Specification for Steel Forgings, General Requirements

    A961/A961M Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications

    E59 Practice for Sampling Steel and Iron for Determination of Chemical Composition


    ICS Code

    ICS Number Code 77.140.85 (Iron and steel forgings)

    UNSPSC Code

    UNSPSC Code 31132100(Steel forgings)


    Referencing This Standard

    DOI: 10.1520/A0727_A0727M-00

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A727 / A727M-00, Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness, ASTM International, West Conshohocken, PA, 2000, www.astm.org

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