General Properties
Alloy 310 is an austenitic stainless steel that combines excellent high temperature properties with good ductility and weldability. It is typically used for elevated temperature applications as its high chromium and nickel content provide solid corrosion resistance, excellent resistance to oxidation, and superior strength in temperatures up to 2100°F. Due to its high chromium and nickel content, it is superior to 304 or 309 stainless in most environments.
Chemical Properties:
| % | Cr | Ni | C | Si | Mn | P | S | Mo | Cu | Fe |
310 | min: 24.0 | min: 19.0 | 0.25 | 0.75 | 2.0 | 0.045 | 0.030 | 0.75 | 0.5 | balance |
310S | min: 24.0 | min: 19.0 | 0.08 | 1.00 | 2.0 | 0.045 | 0.030 | 0.75 | 0.5 | balance |
Mechanical Properties:
| Grade | Tensile Strength ksi (min.) | Yield Strength 0.2% Offset ksi (min.) | Elongation - % in 50 mm (min.) | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
310/310S | 75 | 30 | 40 | 217 | 95 |
Physical Properties:
| Denstiy lbm/in3 | Coefficient of Thermal Expansion (min/in)-°F | Electrical Resistivity mW-in | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Magnetic Permability (annealed)1 | Modules of Elasticity (annealed)2-psi | |||||
at 68 °F | at 68 – 212°F | at 68 – 932°F | at 68 – 1832°F | at 68°F | at 1200°F | at 68 – 1832°F | at 68 – 932°F | at 32 – 212°F | at 200H | in tension (E) | in shear (G) |
0.29 | 8.8 | 9.5 | 10.5 | 30.7 | — | 10.5 | 10.8 | 0.12 | 1.02 | 29 x 106 | 11.2 x 106 |
