| EN GJL 250 Cast iron, gray, flake graphite, Mechanical Properties |
|---|
| Young’s modulus 113 – 135 GPa |
| Flexural modulus * 113 – 135 GPa |
| Shear modulus 44 – 54 GPa |
| Bulk modulus 76 – 96 GPa |
| Poisson’s ratio 0.255 – 0.265 |
| Shape factor 24 |
| Yield strength (elastic limit) 162 – 195 MPa |
| Tensile strength 250 – 300 MPa |
| Compressive strength * 320 – 390 MPa |
| Flexural strength (modulus of rupture) * 185 – 230 MPa |
| Elongation * 0.3 – 0.5 % strain |
| Hardness – Vickers 152 – 285 HV |
| Fatigue strength at 10^7 cycles 72 – 135 MPa |
| Fatigue strength model (stress range) * 55.2 – 93.1 MPa Parameters: Stress Ratio = 0, Number of Cycles = 1e7 |
| Fracture toughness * 16 – 20 MPa.m^0.5 |
| Mechanical loss coefficient (tan delta) 0.01 – 0.035 |
| *Values are approximations. This information’s accuracy is not guaranteed. |
