Hy-Tuf Low Alloy Steel Mechanical Properties
| Hy-Tuf |
| Condition | Quenched & tempered |
| Young’s modulus | 200 | – | 210 | GPa |
| Specific stiffness | 25.5 | – | 26.9 | MN.m/kg |
| Yield strength (elastic limit) | 1280 | – | 1410 | MPa |
| Tensile strength | 1520 | – | 1680 | MPa |
| Specific strength | 163 | – | 180 | kN.m/kg |
| Elongation | 5 | – | 10 | % strain |
| Compressive strength | 1330 | – | 1470 | MPa |
| Flexural modulus | 200 | – | 210 | GPa |
| Flexural strength (modulus of rupture) | 1280 | – | 1410 | MPa |
| Shear modulus | 76 | – | 79.9 | GPa |
| Bulk modulus | 185 | – | 195 | GPa |
| Poisson’s ratio | 0.32 | – | 0.333 | |
| Shape factor | 17 | | | |
| Hardness – Vickers | 470 | – | 550 | HV |
| Hardness – Rockwell C | 46 | – | 50 | HRC |
| Elastic stored energy (springs) | 3.970 | – | 4.850 | kJ/m^3 |
| Fatigue strength at 10^7 cycles | 683 | – | 835 | MPa |
| Fatigue strength model (stress range) Parameters: Stress Ratio = -1, Number of Cycles = 1e7cycles | 656 | – | 869 | MPa |
| Hy-Tuf |
| Condition | Quenched & tempered |
| UNS number | K32550 |
| US name | AMS 6425, ASTM A579 Grade 31 |
MODULUS METAL
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