SAE-AISI O7 Steel vs. ASTM A217 Cast Steel
Both SAE-AISI O7 steel and ASTM A217 cast steel are iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI O7 steel and the bottom bar is ASTM A217 cast steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Poisson's Ratio | 0.29 | |
| 0.28 to 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 to 75 |
| Tensile Strength: Ultimate (UTS), MPa | 680 to 2110 | |
| 540 to 710 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 to 270 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1450 to 1460 |
| Melting Onset (Solidus), °C | 1430 | |
| 1410 to 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 41 | |
| 26 to 50 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
| 7.3 to 9.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 8.4 to 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 6.0 | |
| 2.4 to 7.0 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.3 | |
| 1.5 to 2.1 |
| Embodied Energy, MJ/kg | 33 | |
| 20 to 28 |
| Embodied Water, L/kg | 52 | |
| 47 to 87 |
Common Calculations
| PREN (Pitting Resistance) | 3.6 | |
| 2.5 to 13 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 to 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 to 25 |
| Strength to Weight: Axial, points | 24 to 74 | |
| 19 to 25 |
| Strength to Weight: Bending, points | 22 to 46 | |
| 19 to 23 |
| Thermal Diffusivity, mm2/s | 11 | |
| 6.9 to 14 |
| Thermal Shock Resistance, points | 23 to 70 | |
| 16 to 20 |