Product Description

    Turbine blades, engine shafts, piston rods, gearings, screws.

    Melting Route


    Property Features

    Creep resisting, martensitic precipitation hardenable Cr-Ni-Mo-Cu-steel with high strength and good toughness. BÖHLER T671 EXTRA may be furnished in the solution-annealed or age-hardened condition. A special ageing treatment develops higher strength with good ductility and toughness. Usual upper temperature limit for continuous operating at 370°C.

    Technical Specifications

    Material Numbers

    Custom 450

    Available product shapes

    • Long Products

      Long Products

    • Semi-Finished Products / Billet

      Semi-Finished Products / Billet



    BÖHLER Special Products

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