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