ASTM A739-90a(2000)

    Standard Specification for Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both

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    1. Scope

    1.1 This specification covers hot-wrought, ferritic alloy steel bars for elevated temperature or pressure-containing parts suitable for fusion welding or both.

    1.2 The bars are furnished in the following grades:

    Grade B 11: 1.25% chromium, 0.55% molybdenum

    Grade B 22: 2.25% chromium, 1.00% molybdenum

    1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.


    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

    A29/A29M Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products


    ICS Code

    ICS Number Code 77.140.30 (Steels for pressure purposes)

    UNSPSC Code

    UNSPSC Code 30264500(Stainless steel bars); 30263700(Steel alloy bars)


    DOI: 10.1520/A0739-90AR00

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