Duplex 2205 Stainless Steel – UNS S31803. High chloride stress corrosion resistance at high strength, superior to 304/316 grades in corrosion performance, excellent notch toughness. vSM stocks alloy 2205 (uns s31803) bars between 0.5 – 6.5 in.
| Carbon(C) | Manganese(Mn) | Phosphorus(P) | Sulfur(S) | Silicon(Si) | Nickel(Ni) | Cobalt(Co) |
| 0.03 Max | 2.0 Max | 0.03 Max | 0.02 Max | 1.0 Max | 4.5-6.5 | – |
| Chromium(Cr) | Molybdenum(Mo) | Niobium + Tantalum(Nb (Cb) + Ta) | Titanium(Ti) | Copper(Cu) | Aluminum(Al) | Iron (Fe) & Others |
| 21.0-23.0 | 3.0-3.5 | – | – | – | – | Fe– Balance, Nitrogen– 0.14– 0.2 |