ASTM A677/A677M-99

    Historical Standard: ASTM A677/A677M-99 Standard Specification for Nonoriented Electrical Steel Fully Processed Types

    SUPERSEDED (see Active link, below)


    Buy Standard (PDF)
    6 pages
    $50.40

    Active (view current version of standard)


    1. Scope

    1.1 This specification covers the detailed requirements to which flat-rolled nonoriented fully processed electrical steel shall conform.

    1.2 This steel is produced to specified maximum core-loss values and is intended primarily for commercial power frequency (50 and 60 Hz) applications in magnetic devices. Desirable core loss and permeability characteristics are developed during mill processing, so additional heat treatment by the purchaser is usually not necessary.

    1.3 These nonoriented fully processed electrical steels are low-carbon, silicon-iron or silicon-aluminum-iron alloys containing up to about 3.5% silicon and a small amount of aluminum.

    Note 1-A complete metric companion to Specification A677 has been developed, A677M; therefore no metric units are shown in this specification.


    ICS Code

    ICS Number Code 77.140.50 (Flat steel products and semi-products)

    UNSPSC Code

    UNSPSC Code 31380000(Magnets and magnetic materials)


    DOI: 10.1520/A0677_A0677M-99

    ASTM International is a member of CrossRef.


    Citing ASTM Standards
    Back to Top