Duplex Stainless 2205
Duplex Stainless 2205 is a nitrogen-enhanced duplex used in applications requiring high strength and excellent corrosion resistance. It is designed to combine improved resistance to stress corrosion cracking, pitting and crevice corrosion. It provides nearly double the corrosion resistance typical in other austenitic stainless steels.
Standards
- UNS S31803
- UNS S32250
- ASTM A182
- ASTM A276
- ASTM A479
Applications
- Pump Shafts
- Heat Exchangers
- Pressure Vessels
- Valve Components
Composition(%)
- Carbon 0.030 Max
- Chromium 21.0-23.0
- Manganese 2.0 Max
- Molybdenum 2.50-3.50
- Nickel 4.50-6.50
- Nitrogen 0.080-0.20
- Phosphorus 0.030 Max
- Silicon 1.00 Max
- Sulfur 0.020 Max
Mechanical Properties
| Material Type | Condition | Ultimate Tensile Strength (PSI) | 0.2% Yeild Strength (PSI) | Elongation (% In 2in.) | Reduction Of Area (%) | Hardness Brinell | Hardness Rockwell |
|---|---|---|---|---|---|---|---|
| Duplex 2205 | Annealed | 90,000 | 65,000 | 25 | * | 290 Max | * |
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