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A2 and D2 Tool Steel

Cold work tool steels optimized for a wide variety of manufacturing applications

A2 and D2 are cold work tool steels defined by their extremely high hardness after heat treatment. A2 tool steel is often regarded as a “universal” cold work steel, offering a combination of good wear resistance and high toughness. D2 tool steel is harder and more wear-resistant, but less tough. Both can be used for cutting and forming tools, or other applications where high hardness are valued.

  • A2 Tool Steel is a highly versatile air-hardening tool steel often regarded as a “universal” cold work steel. It offers a combination of
    good wear resistance (between O1 and D2) and toughness. Considered relatively easy to machine in the annealed condition, it has a
    high compression strength and good dimensional stability during hardening and tempering. It’s used for a wide variety of cold-work
    tools, from forming and cutting equipment to high wear parts

    D2 Tool Steel is a high carbon, high chromium air-hardening tool steel that can be heat treated to high hardness and compressive
    strength. D2 Tool Steel offers excellent wear resistance and is widely used in cold work applications that require sharp edges,
    abrasion resistance, and compressive strength. Markforged D2 Tool Steel meets chemical requirements of ASTM A681.

    • Forming Tools
    • Stamping Dies
    • Punch Dies
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