Automotive Grey Cast Iron vs. AISI 440C Stainless Steel
Both automotive grey cast iron and AISI 440C stainless steel are iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is automotive grey cast iron and the bottom bar is AISI 440C stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 200 |
| Elongation at Break, % | 9.6 to 14 | |
| 2.0 to 14 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 69 to 70 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 140 to 290 | |
| 710 to 1970 |
| Tensile Strength: Yield (Proof), MPa | 94 to 200 | |
| 450 to 1900 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 to 280 | |
| 280 |
| Melting Completion (Liquidus), °C | 1380 to 1390 | |
| 1480 |
| Melting Onset (Solidus), °C | 1340 to 1350 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Conductivity, W/m-K | 41 to 43 | |
| 22 |
| Thermal Expansion, µm/m-K | 12 to 14 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 to 7.6 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.1 | |
| 2.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 to 3.0 | |
| 9.0 |
| Density, g/cm3 | 7.5 to 7.6 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.7 | |
| 2.2 |
| Embodied Energy, MJ/kg | 21 to 24 | |
| 31 |
| Embodied Water, L/kg | 44 to 51 | |
| 120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 25 | |
| 39 to 88 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 5.2 to 11 | |
| 26 to 71 |
| Strength to Weight: Bending, points | 8.0 to 13 | |
| 23 to 46 |
| Thermal Diffusivity, mm2/s | 11 to 12 | |
| 6.0 |
| Thermal Shock Resistance, points | 4.2 to 8.6 | |
| 26 to 71 |