The M42 steel has a high hardness of 68~70HRC, good heat hardness, high temperature hardness and easy grinding. but the toughness is slightly poor, and the lower limit should be used for quenching. Due to its good grindability, it can be used to manufacture a wide range of high precision and complex tools.

SKU: M42 W2Mo9Cr14VCo8 SKH59 1.3247 High Speed Steel Category:
  1. General Details

    M42 W2Mo9Cr14VCo8 SKH59 1.3247 High-Speed Steel

    M42 steel (W2Mo10Cr4Co8) is a high-cobalt toughness high-speed steel, mainly used for high-toughness precision wear-resistant hardware cold stamping die, and can also be used for cutting tools and knife cooling.

    Similar Grade

    Execution Standard ZEICIN Grade GB AISI JIS DIN
    GB/T9943-2008 M42 W2Mo9Cr14VCo8 M42 SKH59 1.3247

    Main Chemical Composition%

    C W Mo Cr V Co Al Mn Si S P
    01.05-1.15 1.15-1.85 9.00-10.00 3.50-4.25 0.95-1.35 7.75-8.75 0.15-0.40 0.15-0.65 ≤0.03 ≤0.03


    • Round Bar/mm
    Type Specification(mm) Surface Condition
    Cold-drawn Round Steel φ2-10 Black
    Hot-rolled Round Steel φ11-75 Turned
    Precision Forging Round Steel φ80-120 Turned
    • Specification for Hot-rolled flat bar in common use/mm (black surface)
    TW 20 25 30 40 50 60 70 80 90 100

    More Information

    Technology process: EAF+LF+VD+RS ESR, Unique technology of rapid solidification electro slag smelting, which can greatly improve the performance of the internal organization of high-speed steel, ledeburite meshes smaller and thinner, can make material high toughness, high wear resistance.
    Property High carbon high cobalt superhard high-speed steel, high room temperature, and high-temperature hardness, high hot hardness, good grinding, sharp blade.
    Application Suitable for variety production of complex precision tools, such as forming milling cutter, finishing broach, special drill, lathe tool, tool bit, and blade, it can obtain a good effect for difficult machining of casting high-temperature alloy, titanium alloy, super high strength steel, etc.

    Heat treatment reference

    High speed steel M42 SKH59


    Surface condition


  2. Download

    download the specification for 1.4117 Stainless Steel of ZEICIN

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