Aviation and aerospace industries, nuclear, turbine and general mechanical engineering.
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).
Market grade | DIN | UNS | EN |
---|---|---|---|
520B, Alloy FV520 | 1.4594 | S45000 | X5CrNiMoCuNb14-5 |
C | Si | Mn | Cr | Mo | Ni | Cu | Nb | |
---|---|---|---|---|---|---|---|---|
0.05 | 0.25 | 0.40 | 14.00 | 1.50 | 5.20 | 1.60 | 0.25 |