Martensitic precipitation hardenable chromium-nickel-copper steel possessing high strength and toughness. Further strength increments can be obtained by cold forming, followed by a precipitation hardening treatment.
Aircraft and rocket engineering, mechanical engineering, power generation, measuring and control technique
| Market grade | DIN | UNS | EN | Others |
|---|---|---|---|---|
| 17-4 PH | 1.4542, 1.4548 | S17400 | X5CrNiCuNb16-4 | AISI: 630, Z5CNU17, X5CrNiCuNb 17 4 4 |
| AMS |
|---|
| 5622, 5643 |
| C | Si | Mn | Cr | Ni | Cu | Nb | |
|---|---|---|---|---|---|---|---|
| 0.04 | 0.25 | 0.40 | 15.30 | 4.50 | 3.25 | 0.30 |
