ATI 2003 (Lean Duplex) vs ATI 255 (Super Duplex)
Property comparison of ATI 2003 (Lean Duplex) and ATI 255 (Super Duplex), both stainless steel.
| Property | ATI 2003 (Lean Duplex) | ATI 255 (Super Duplex) | Difference |
|---|---|---|---|
| Yield strength | 485 MPa | 551 MPa | +14% |
| Tensile strength | 695 MPa | 758 MPa | +9% |
| Elongation | 25 % | 15 % | -40% |
| Elastic modulus | 210,000 MPa | 200,000 MPa | -5% |
| Density | 7,780 kg/m³ | 7,728 kg/m³ | -1% |
| Brinell hardness | 293 HB | 302 HB | +3% |
| Thermal conductivity | 17 W/m·K | 13.3 W/m·K | -22% |
| Coefficient of thermal expansion | 0.000014 1/K | 0.000012 1/K | -12% |
Difference is ATI 255 (Super Duplex) relative to ATI 2003 (Lean Duplex). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- UNS S32003
- standard
- ASTM A240
- heat treatment
- Annealed
- grade
- UNS S32550
- standard
- ASTM A240
- heat treatment
- Annealed
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