T670

Product Description

Aviation and aerospace industries, nuclear, turbine and general mechanical engineering.

Property Features

Creep resistant martensitic precipitation hardenable Cr-Ni-Mo-Cu-steel with high strength and good toughness. Usual upper temperature limit for continuous operating at 370°C. BÖHLER T670 EXTRA is being refined by the remelting process (ESR/VAR).

Technical Specifications

Material Numbers


520B, Alloy FV520 1.4594 S45000 X5CrNiMoCuNb14-5


Chemical Composition

0,05 0,25 0,40 14,00 1,50 5,20 1,60 0,25

Chemical composition (average %)

Available product shapes

  • Long Products
  • Open Die Forgings
  • Plates

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