STP987

    Ladle Refining: An Integral Part of Bearing Steel Manufacture

    Published: Jan 1988


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    Abstract

    The entire bearing steel output of Stocksbridge Engineering Steels is produced through a ladle furnace route which encompasses the major process elements necessary for the achievement of high product-cleanliness levels. The equipment and process routes involved are described, together with the vacuum arc remelting capability and its associated, high-integrity ultrasonic inspection unit. Improvements in steel cleanliness achievable with these manufacturing facilities have been assessed in terms of lower oxygen levels, better microcleanliness, and higher fatigue lives.

    Keywords:

    bearing steels, ladle furnace, vacuum arc remelted (VAR), steel cleanliness, SAE 52100, SAE 1070, SAE 1552, carburizing steels, ultrasonic inspection, rolling contact fatigue, oxygen content, inclusion assessment


    Author Information:

    Davies, IG
    Technical director, Stocksbridge Engineering Steels, Sheffield,

    Clarke, MA
    Manager, Metallurgical Development, Stocksbridge Engineering Steels, Sheffield,

    Dulieu, D
    Manager, Alloy Steel Department, Swinden Laboratories, British Steel Corporation, Rotherham,


    Paper ID: STP26247S

    Committee/Subcommittee: A01.28

    DOI: 10.1520/STP26247S


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