UNS S31803 Bar
UNS S31803 Bar introduction
Duplex UNS S31803 is the most common duplex grade in the market with high mechanical strength. The alloy is not intended to be used at temperatures above 300°C due to embrittlement.
Equivalent material: EN 1.4462, UNS S31803, UNS S32205, ASTM A182 Grade F51, ASTM A182 Grade F60
UNS S31803 Bar general
| Property |
Value |
| Diameter |
Diameter of 6 - 410 mm |
UNS S31803 Bar chemical
| Property |
Value |
| Carbon |
Carbon of 0.03 % |
| Chromium |
Chromium of 21 - 23 % |
| Iron |
Balance |
| Manganese |
Manganese of 2 % |
| Molybdenum |
Molybdenum of 2.5 - 3.5 % |
| Nickel |
Nickel of 4.5 - 6.5 % |
| Nitrogen |
Nitrogen of 0.1 - 0.22 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 1 % |
| Sulfur |
Sulfur of 0.015 % |
UNS S31803 Bar mechanical
| Property |
Temperature |
Value |
| Charpy impact energy, V-notch |
-46.0 °C |
Charpy impact energy, V-notch of 45 J |
| Elongation |
23.0 °C |
Elongation of 25 % |
| Hardness, Brinell |
23.0 °C |
Hardness, Brinell of 270 [-] |
| Tensile strength |
23.0 °C |
Tensile strength of 650 - 880 MPa |
| Yield strength Rp0.2 |
23.0 °C |
Yield strength Rp0.2 of 450 MPa |
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