Duplex 2205 flange manufacturer, Mumbai. UNS S31803/S32205 F51/F60, high yield 450 MPa, PREN >=34. Seawater & oilfield spec. Quote in 30 min.
Duplex 2205 (UNS S31803 / S32205) features a dual-phase 50/50 ferrite-austenite microstructure, providing double the mechanical yield strength of standard 316L alongside superior resistance to chloride stress corrosion cracking.
Governing specification limits per ASTM / ASME standards. Actual values provided on EN 10204 3.1 MTC.
| Element | Specification Limit / Composition |
|---|---|
| Chromium (Cr) | 22.0 - 23.0% |
| Molybdenum (Mo) | 3.00 - 3.50% |
| Nickel (Ni) | 4.50 - 6.50% |
| Nitrogen (N) | 0.14 - 0.20% |
| Property | Specification Limit |
|---|---|
| Yield Strength (0.2% Offset) | 450 MPa (65 ksi) min |
| Tensile Strength | 620 MPa (90 ksi) min |
| Hardness | 293 HBW max |
| PREN | ≥ 34 |
| Service Temp | Class 150 | Class 300 | Class 600 | Class 900 |
|---|---|---|---|---|
| Ambient (-29 to 38°C) | 290 psi | 750 psi | 1500 psi | 2250 psi |
A: Duplex 2205 is limited to 315°C (600°F). Sustained operation above 300-315°C leads to embrittlement due to 475°C phase precipitation and sigma phase formation.
Written commercial offer with Mill Test Certificate guarantee.