Application Segments


    Melting Route

    VIM + VAR

    Product Description

    This specification covers a premium aircraft-quality, double vacuum-melted low-alloy steel in the form of bars, forgings and forging stock.

    It is used typically for parts such as bearings operating under heavy loads and high speeds at moderate temperatures up to 600° F. E.g. bearings and rolling elements, bearing balls and races.

    Technical Specifications

    Material Numbers

    M50 1.3551 80MoCrV42-16



    Chemical Composition

    Chemical composition (average %)
    0.80 to 0.85 max. 0.25 0.15 to 0.35 max. 0.015 max. 0.008 4.00 to 4.25 4.00 to 4.50 max. 0.15 0.90 to 1.10 max. 0.25 max. 0.10 max. 0.25

    Available product shapes

    • Long Products

      Long Products

    • Semi-Finished Products / Billet

      Semi-Finished Products / Billet


    BÖHLER Special Products

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