Austempered Cast Iron vs. ASTM A514 Steel
Both austempered cast iron and ASTM A514 steel are iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is austempered cast iron and the bottom bar is ASTM A514 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 270 to 490 | |
| 240 to 250 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 190 |
| Elongation at Break, % | 1.1 to 13 | |
| 18 to 21 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 62 to 69 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 860 to 1800 | |
| 790 to 830 |
| Tensile Strength: Yield (Proof), MPa | 560 to 1460 | |
| 690 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 to 260 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1460 |
| Melting Onset (Solidus), °C | 1340 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 470 |
| Thermal Conductivity, W/m-K | 42 | |
| 37 to 51 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 2.3 to 3.8 |
| Density, g/cm3 | 7.5 | |
| 7.8 to 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 1.6 to 1.8 |
| Embodied Energy, MJ/kg | 25 | |
| 21 to 25 |
| Embodied Water, L/kg | 48 | |
| 48 to 57 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 to 95 | |
| 140 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 3970 | |
| 1280 to 1590 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 32 to 66 | |
| 28 to 29 |
| Strength to Weight: Bending, points | 27 to 44 | |
| 24 to 25 |
| Thermal Diffusivity, mm2/s | 11 | |
| 10 to 14 |
| Thermal Shock Resistance, points | 25 to 53 | |
| 23 to 24 |