Duplex Stainless Steel

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