ASTM A290/A290M-05

    Standard Specification for Carbon and Alloy Steel Forgings for Rings for Reduction Gears


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    1. Scope

    1.1 This specification covers normalized and tempered, and quenched and tempered, carbon and alloy steel forged or rolled rings for reduction gears.

    1.2 Several grades and classes of steel are covered as follows:

    1.2.1 Grade 1, Classes A and B, and Grade 2, Classes C and D, are carbon steel.

    1.2.2 Grade 3, Classes E and F, Grade 4, Classes G, H, I, J, K and L, Grade 5, Classes M and P, and Grade 6, Class T, are alloy steel.

    1.2.3 All grades and classes are considered weldable under proper conditions. Welding techniques are of fundamental importance and it is pre-supposed that welding procedure and inspection will be in accordance with proper methods for the class of material used.

    1.3 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.


    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

    A275/A275M Practice for Magnetic Particle Examination of Steel Forgings

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    A388/A388M Practice for Ultrasonic Examination of Steel Forgings

    A788/A788M Specification for Steel Forgings, General Requirements


    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/A0290_A0290M-05

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A290 / A290M-05, Standard Specification for Carbon and Alloy Steel Forgings for Rings for Reduction Gears, ASTM International, West Conshohocken, PA, 2005, www.astm.org

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