Chemical Composition
| Grade Symbol |
UNS Number |
Alloy |
Elements |
Composition % |
| F6A |
S41000 |
13 % chromium 410G |
Carbon |
0.15 max |
| Manganese |
1.00 max |
| Phosphorus |
0.040 max |
| Sulfur |
0.030 max |
| Silicon |
1.00 max |
| Nickel |
0.50 max |
| Chromium |
11.5–13.5 |
Mechanical Properties
| Property |
Value |
|---|
| Class |
1 |
2 |
3 |
4 |
| Tensile Strength, min, ksi [MPa] |
70 [485] |
85 [585] |
110 [760] |
130 [895] |
| Yield Strength, min, ksi [MPa] |
40 [275] |
55 [380] |
85 [585] |
110 [760] |
| Elongation in 2 in. [50mm] or 4D, min, % |
18 |
18 |
15 |
12 |
| Reduction or Area, min, % |
35 |
35 |
35 |
35 |
| Brinell Hardness Number, HBW |
143-207 |
167-229 |
235-302 |
263-321 |
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.
