ASTM B780 Alloy vs. ASTM A732 Cast Steel
ASTM B780 alloy belongs to the otherwise unclassified metals classification, while ASTM A732 cast steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is ASTM B780 alloy and the bottom bar is ASTM A732 cast steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 83 | |
| 190 |
| Elongation at Break, % | 1.1 to 9.1 | |
| 4.0 to 25 |
| Poisson's Ratio | 0.36 | |
| 0.29 |
| Shear Modulus, GPa | 30 | |
| 72 to 73 |
| Tensile Strength: Ultimate (UTS), MPa | 330 to 590 | |
| 460 to 1470 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 250 to 260 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 470 to 480 |
| Thermal Expansion, µm/m-K | 18 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 70 to 76 | |
| 7.1 to 7.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 62 to 68 | |
| 8.2 to 8.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 7.8 to 7.9 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.5 | |
| 13 |
| Stiffness to Weight: Bending, points | 14 | |
| 24 |
| Strength to Weight: Axial, points | 9.1 to 16 | |
| 16 to 52 |
| Strength to Weight: Bending, points | 11 to 15 | |
| 17 to 37 |
| Thermal Shock Resistance, points | 16 to 29 | |
| 14 to 43 |