All materials
Austenitic stainless steels
Osprey® 904L
N08904 · 1.4539 · X1NiCrMoCu25-20-5 · 904L · 4539-089-04-I
Osprey® 904L is a high-alloy austenitic stainless steel characterized by very good resistance to general corrosion in sulphuric, phosphoric and acetic acid as well as to pitting and SCC.
Chemical composition, %
- C
- 0.02
- Si
- 1.0
- Mn
- 2.0
- P
- 0.045
- S
- 0.035
- Cr
- 19.0-23.0
- Ni
- 23.0-28.0
- Mo
- 4.0-5.0
- Fe
- Bal.
Designations
| UNS | N08904 |
|---|---|
| EN Number | 1.4539 |
| EN Name | X1NiCrMoCu25-20-5 |
| ASTM, AISI | 904L |
| ISO | 4539-089-04-I |