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
| SEL | SEL | UNS | EN | EN | EN | AISI | Market grade |
|---|---|---|---|---|---|---|---|
| 1.4542 | 1.4548 | S17400 | X5CrNiCuNb16-4 | X5CrNiCuNb17-4-4 | EZ6CNU17.04 | AISI: 630 | 17-4 PH |
| ASTM | AMS | AMS | AMS |
|---|---|---|---|
| A564 | 5643 | 5604 | 5622 |
| C | Si | Mn | Cr | Ni | Cu | Nb | |
|---|---|---|---|---|---|---|---|
| 0.04 | 0.25 | 0.40 | 15.30 | 4.50 | 3.25 | 0.30 |
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