Melting Route


    Product Description

    BÖHLER W302 ISODISC is a 5% chromium steel and corresponds to material number 1.2344 (X40CrMoV5-1). This common tool steel has good hot toughness as well as a high hot hardness and a high resistance against heat-checkings. The combination of these properties makes it a standard choice in extrusion, forging and low-pressure die casting. This material is also available as W302 ISOBLOC which is a remelted grade with improved cleanliness, homogeneity and toughness.

    Property Features

    • Toughness & Ductility: good
    • Wear Resistance: high
    • Machinability: very high
    • Hot Hardness (red hardness): high
    • Polishability: good
    • Thermal conductivity: good
    • Micro-cleanliness: good

    Technical Specifications

    High temperture strength High temperature toughness High temperature wear resistance

    Material Numbers

    1.2344 T20813 X40CrMoV5-1 H13 SKD61


    4957 G4404

    Chemical Composition

    Chemical composition (average %)
    0.39 1.10 0.40 5.20 1.30 0.95

    Available product shapes

    Information on Long Products ) Presented data refer exclusivly to long products. Please observe the detailed explanations at the end of the data sheet (pdf).

    • Long Products

      Long Products

    • Open Die Forgings

      Open Die Forgings

    • Plates


    • Complex Cut

      Complex Cut

    • Plate/Block


    • Flat bar

      Flat bar

    • Round bar

      Round bar



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