Chemical Composition
| Grade Symbol |
UNS Number |
Alloy |
Elements |
Composition % |
| F310 |
S31000 |
25 chromium, 20 nickel 310G |
Carbon |
0.25 max |
| Manganese |
2.00 max |
| Phosphorus |
0.045 max |
| Sulfur |
0.030 max |
| Silicon |
1.00 max |
| Nickel |
19.00 - 22.00 |
| Chromium |
24.00 - 26.00 |
Mechanical Properties
| Property | Value |
|---|
| Tensile Strength, min, ksi [MPa] |
75 [515] |
| Yield Strength, min, ksi [MPa] |
30 [205] |
| Elongation in 2 in. [50mm] or 4D, min, % |
30 |
| Reduction or Area, min, % |
50 |
Heat Treatment
After hot working, forgings shall be cooled to a temperature below 1000 °F [538 °C] prior to heat treating in accordance with the requirements.
