ASTM A943/A943M-01(2009)

    Standard Specification for Spray-Formed Seamless Austenitic Stainless Steel Pipes


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    1. Scope

    1.1 This specification covers spray-formed seamless austenitic stainless steel pipe intended for high-temperature and general corrosive service.

    1.2 Grades TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP316H, TP321H, TP347H, and TP348H are modifications of Grades TP304, TP309Cb, TP309S, TP310Cb, TP310S, TP316, TP321, TP347, and TP348, and are intended for high-temperature service.

    1.3 Optional supplementary requirements are provided for pipe where a greater degree of testing is desired. These supplementary requirements call for additional tests to be made and, when desired, one or more of these may be specified in the order.

    1.4 Appendix X1 lists the dimensions of seamless stainless steel pipe as shown in ANSI B36.19. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.

    1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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.

    1.5.1 Within the text, the SI units are shown in brackets.

    1.5.2 The inch-pound units shall apply unless the M designation of this specification is specified in the order.

    Note 1—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as nominal diameter, size, and nominal size.


    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

    A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

    A450/A450M Specification for General Requirements for Carbon and Low Alloy Steel Tubes

    A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys

    A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe

    E112 Test Methods for Determining Average Grain Size

    E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    ANSI/ASME Standards

    B1.20.1 Pipe Threads, General Purpose

    B36.10 Welded and Seamless Wrought Steel Pipe

    B36.19 Stainless Steel Pipe

    Other Standard

    SAE  J1086 Practice for Numbering Metals and Alloys (UNS)


    ICS Code

    ICS Number Code 23.040.10 (Iron and steel pipes)

    UNSPSC Code

    UNSPSC Code 40171622(Industrial seamless stainless steel pipe)


    Referencing This Standard

    DOI: 10.1520/A0943_A0943M-01R09

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A943 / A943M-01(2009), Standard Specification for Spray-Formed Seamless Austenitic Stainless Steel Pipes, ASTM International, West Conshohocken, PA, 2009, www.astm.org

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