
| Property | Value / Specification |
| Material Grade | Standard Duplex Steel UNS S31803 |
| Common Trade Names | 2205, F51, Werkstoff 1.4462 |
| Dual Certification | UNS S32205 |
| Manufacturing Standards | ASTM A790, ASME SA790, ASTM A928, EN 10216-5 |
| Microstructure | 50% Austenite / 50% Ferrite Dual-Phase |
| PREN Value | 33.0 to 35.0 (%Cr + 3.3x%Mo + 16x%N) |
| Standard Pipe Forms | Seamless, Welded, ERW, EFW, Fabricated |
| Seamless Size Range | 1/2 inch NB to 10 inch NB |
| Welded Size Range | 6 inch NB to 30 inch NB |
| Element | Minimum (%) | Maximum (%) |
| Chromium (Cr) | 21.00 | 23.00 |
| Nickel (Ni) | 4.50 | 6.50 |
| Molybdenum (Mo) | 2.50 | 3.50 |
| Nitrogen (N) | 0.08 | 0.20 |
| Manganese (Mn) | - | 2.00 |
| Silicon (Si) | - | 1.00 |
| Carbon (C) | - | 0.030 |
| Phosphorus (P) | - | 0.030 |
| Sulfur (S) | - | 0.020 |
| Iron (Fe) | Balance | Balance |
| Property | Value |
| Tensile Strength (UTS) | 620 MPa min |
| Yield Strength (0.2% Proof) | 450 MPa min |
| Elongation in 2 inches | 25% min |
| Hardness (Brinell) | 290 HBW max |
| Impact Energy (-40 C) | 80 J min |
All wall thickness measurements below are listed in millimeters (mm).
| NPS (Inches) | Outside Diameter (mm) | Sch 10S (mm) | Sch 40 / STD (mm) | Sch 80 / XS (mm) | Sch 160 (mm) | XXS (mm) |
| 1/2 | 21.3 | 2.11 | 2.77 | 3.73 | 4.78 | 7.47 |
| 3/4 | 26.7 | 2.11 | 2.87 | 3.91 | 5.56 | 7.82 |
| 1 | 33.4 | 2.77 | 3.38 | 4.55 | 6.35 | 9.09 |
| 1-1/2 | 48.3 | 2.77 | 3.68 | 5.08 | 7.14 | 10.15 |
| 2 | 60.3 | 2.77 | 3.91 | 5.54 | 8.74 | 11.07 |
| 3 | 88.9 | 3.05 | 5.49 | 7.62 | 11.13 | 15.24 |
| 4 | 114.3 | 3.05 | 6.02 | 8.56 | 13.49 | 17.12 |
| 6 | 168.3 | 3.40 | 7.11 | 10.97 | 18.26 | 21.96 |
| 8 | 219.1 | 3.76 | 8.18 | 12.70 | 23.01 | 22.23 |
| 10 | 273.0 | 4.19 | 9.27 | 15.09 | 28.58 | 25.40 |
| 12 | 323.8 | 4.57 | 10.13 | 17.48 | 33.32 | 25.40 |
| 14 | 355.6 | 4.78 | 11.13 | 19.05 | 35.71 | - |
| 16 | 406.4 | 4.78 | 12.70 |
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