Duplex Steel UNS S31803/2205 Buttweld Fittings Specifications
| Grade | Duplex Stainless 2205 (UNS N0 S31803 / S32205) , F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
|---|---|
| Dimension Std. | ANSI/ASME B16.9, B16.28, MSS-SP-43 |
| Specification | ASTM / ASME A815 / SA815 |
| Size | ½” NB – 48” NB |
| Schedule | SCH 10 – SCH XXS |
| Type | Seamless / ERW / Welded / Fabricated |
Types of Buttweld Fittings
| Duplex Steel Reducers | Duplex Steel Concentric Reducers | Duplex Steel Tees |
| Duplex Steel Weldolet | Duplex Steel Short Stub End | Duplex Steel Eccentric Reducers |
| Duplex Steel Elbows | Duplex Steel 3D Elbow | Duplex Steel Lap Joint Stub End |
| Duplex Steel End Caps | Duplex Steel 5D Elbow | Duplex Steel 180° SR Return Bends |
| Duplex Steel Elbows | Duplex Steel Short Radius Elbow | Duplex Steel 45° Elbows |
| Duplex Steel Reducing Elbow | Duplex Steel Long Radius Elbow | Duplex Steel 180° LR Return Bends |
| Duplex Steel 45° Elbows | Duplex Steel Equal Tee | Duplex Steel UnEqual Tee |
| Duplex Steel Reducing Tee | Duplex Steel 1D Elbow | Duplex Steel 1.5D Elbow |
| Duplex Steel Long Stub Ends | Duplex Steel 2D Elbow | Duplex Steel 6D Elbow |
Chemical Composition of Duplex Steel UNS S31803/2205 Buttweld Fittings
| Grade | Common Name | C% | Mn% | Si% | P% | S% | Cr% | Ni% | Mo% | N% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2205 | S31803 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| 2205 | S32205 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 |
Mechanical Properties of Duplex Steel UNS S31803/2205 Buttweld Fittings
| Tensile strength | 620MPa min | Density | 7,805kg/m3 |
|---|---|---|---|
| Yield strength | 450MPa mi | Elastic modulus | 200GPa |
Physical Properties of Duplex Steel UNS S31803/2205 Buttweld Fittings
| Elongation | 25% min | Mean coefficient of thermal expansion | |
|---|---|---|---|
| Brinell hardness | 293 HB max | 0-100oC | 13.7µm/m/oC |
| Rockwell hardness | 31 HR C max | 0-315oC | |
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