Type 317L is a low carbon austenitic stainless steel version of Type 317 that offers improved corrosion resistance over Type 304/304L.
Like all stainless steels, Type 317L has a unique chemical composition that includes the following:
Fe Balance
Cr 18-20%
Ni 11-15%
Mn 2%
Si 0.75%
C 0.03%
N 0.1%
S 0.03%
P 0.045%
Stainless Steel 317L Properties
| Melting Range | Density | Tensile Strength (PSI/MPa) | Yield Strength (0.2%Offset) (PSI/MPa) | Elongation % |
| 1400 °C (2550 °F) | 7.9 g/cm3 | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Alloy 317L or UNS S31703 is a molybdenum-bearing Austenitic Stainless Steel. This is a low carbon grade that offers resistance to sensitization during welding. It provides excellent resistance to chemical attack as compared to the conventional Chromium-Nickel Austenitic Stainless Steels. Alloy 317L provides resistance against higher creep, stress-to-rupture, and many thermal processes. It has a tensile strength at elevated temperatures.
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