ASTM A732 Cast Steel vs. AISI 440A Stainless Steel
Both ASTM A732 cast steel and AISI 440A stainless steel are iron alloys. There are 28 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 ASTM A732 cast steel and the bottom bar is AISI 440A stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 4.0 to 25 | |
| 5.0 to 20 |
| Fatigue Strength, MPa | 230 to 750 | |
| 270 to 790 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 to 73 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 1470 | |
| 730 to 1790 |
| Tensile Strength: Yield (Proof), MPa | 310 to 1340 | |
| 420 to 1650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 to 260 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 400 to 430 | |
| 760 |
| Melting Completion (Liquidus), °C | 1440 to 1460 | |
| 1480 |
| Melting Onset (Solidus), °C | 1400 to 1420 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 to 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 39 to 50 | |
| 23 |
| Thermal Expansion, µm/m-K | 13 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 to 7.7 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 to 8.9 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.0 to 3.8 | |
| 9.0 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.4 to 1.7 | |
| 2.2 |
| Embodied Energy, MJ/kg | 19 to 24 | |
| 31 |
| Embodied Water, L/kg | 47 to 54 | |
| 120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 45 to 130 | |
| 87 to 120 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 16 to 52 | |
| 26 to 65 |
| Strength to Weight: Bending, points | 17 to 37 | |
| 23 to 43 |
| Thermal Diffusivity, mm2/s | 10 to 14 | |
| 6.2 |
| Thermal Shock Resistance, points | 14 to 43 | |
| 26 to 65 |