Duplex stainless steels normally contain 22-25% chromium and 5% nickel with molybdenum and nitrogen.
metallurgy
- Magnetic
- Non hardenable by heat treatment
- Contains both austenite and ferrite
- High strength
- Resistant to chloride stress corrosion cracking
- Subject to hydrogen embrittlement
- Subject to ductile brittle temperature embrittlement
- Easy to weld
Grades
SAF 2101, SAF 2205, SAF 2304, SAF 2507, SAF 2507Cu
abbreviations
- DDS - duplex stainless steel
