This grade of stainless steel is widely used in the aerospace industry.
| Element | Min % | Max % |
| C | – | 0.15 |
| Si | 0.20 | – |
| Mn | – | 2.00 |
| Ni | 7.00 | 10.00 |
| Cr | 17.00 | 20.00 |
| Ni + Cr | 25.00 | – |
| Ti or Nb/Cb |
4 x C
8 x C |
–
– |
| S | – | 0.045 |
| P | – | 0.045 |
Density
8.0 g/cm³ | 0.289 lb/in³
Melting Point
1398°C | 2550°F
Coefficient of Expansion
17.5 μm/m °C (20 – 100°C) | 9.7 x 10-6 in/in °F (70 – 212°F)
Modulus of Elasticity
187.5 kN/mm² | 27195 ksi
Modulus of Rigidity
70.3 kN/mm² | 10196 ksi
Properties
| Condition | Approx. tensile strength | Approx. operating temperature | ||
| N/mm² | ksi | °C | °F | |
| Annealed | 600 – 800 | 87 – 116 | -200 to +300 | -330 to +570 |