Chemical Composition
| Grade Symbol |
UNS Number |
Alloy |
Elements |
Composition % |
| F429 |
S42900 |
15 chromium 429G |
Carbon |
0.12 max |
| Manganese |
1.00 max |
| Phosphorus |
0.040 max |
| Sulfur |
0.030 max |
| Silicon |
0.75 max |
| Nickel |
0.50 max |
| Chromium |
14.0–16.0 |
Mechanical Properties
| Property | Value |
|---|
| Tensile Strength, min, ksi [MPa] |
60 [415] |
| Yield Strength, min, ksi [MPa] |
35 [240] |
| Elongation in 2 in. [50mm] or 4D, min, % |
20 |
| Reduction or Area, min, % |
45 |
| Brinell Hardness Number, HBW |
190 max |
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.
