| Property | PRS | AMRS |
| Density, g/cm3 | 7.84 | 7.88 |
| Specific heat, J/(Kg-˚C) | 674 | 502 |
| Thermal conductivity, W/(m-˚C) | 50.5 | 13 |
| Thermal expansion co-efficient (0˚C - 600˚C), ×10−6 ˚C−1 | 10.8 | 21.5 |
| Hardness, HV0.5 | 310 - 360 | 315 - 395 |
| Elastic modulus, GPa | 210 | 186 |
| Solidus temperature, ˚C | 1287 | 1135 |
| Martensite start temperature Ms, ˚C | 263 | −193 |
| Critical austenetization temperature AC3, ˚C | 765 | 983 |
| Thermal diffusivity, 10−6 × m2/s | 5.1 | 3.8 |