All materials
Martensitic stainless steels
Osprey® 440B
S44003 · 1.4112 · X90CrMoV18 · 440B
Osprey® 440B is a martensitic stainless chromium steel, similar to 440C but with a lower carbon content to improve toughness.
Chemical composition, %
- C
- 0.75-0.95
- Si
- 1.0
- Mn
- 1.0
- P
- 0.04
- S
- 0.03
- Cr
- 16.0-18.0
- Mo
- 0.75
- Fe
- Bal.
Designations
| UNS | S44003 |
|---|---|
| EN Number | 1.4112 |
| EN Name | X90CrMoV18 |
| ASTM, AISI | 440B |