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Precipitation hardening stainless steels
Osprey® 17-4 PH
S17400 · 1.4548 · X5CrNiCuNb16-4 · 630
Osprey® 17-4 PH is a precipitation hardening stainless steel with good resistance to general corrosion and well-defined heat treatment for high strength and hardness.
Chemical composition, %
- C
- ≤0.07
- Si
- 1.0
- Mn
- ≤1.0
- P
- ≤0.03
- S
- ≤0.04
- Cr
- 15.5-17.5
- Ni
- 3.0-5.0
- Mo
- ≤0.3
- Cu
- 3.0-5.0
- Nb
- 0.15-0.45
- Fe
- Bal.
Designations
| UNS | S17400 |
|---|---|
| EN Number | 1.4548 |
| EN Name | X5CrNiCuNb16-4 |
| ASTM, AISI | 630 |