ASTM B631 Class A vs. Austenitic Grey Cast Iron
ASTM B631 class A belongs to the otherwise unclassified metals classification, while austenitic grey cast iron belongs to the iron alloys. There are 12 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is ASTM B631 class A and the bottom bar is austenitic grey cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 | |
| 180 |
| Poisson's Ratio | 0.3 | |
| 0.29 to 0.3 |
| Shear Modulus, GPa | 85 to 86 | |
| 69 to 72 |
Thermal Properties
| Latent Heat of Fusion, J/g | 160 | |
| 280 to 350 |
| Melting Completion (Liquidus), °C | 2680 to 2690 | |
| 1340 to 1400 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 470 to 490 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 to 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 15 | |
| 7.7 to 8.1 |
| Embodied Carbon, kg CO2/kg material | 43 | |
| 3.1 to 4.7 |
| Embodied Energy, MJ/kg | 670 | |
| 43 to 65 |
Common Calculations
| Stiffness to Weight: Axial, points | 8.5 | |
| 13 |
| Stiffness to Weight: Bending, points | 14 | |
| 23 to 25 |