Automotive Grey Cast Iron vs. S15500 Stainless Steel
Both automotive grey cast iron and S15500 stainless steel are iron alloys. There are 28 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 automotive grey cast iron and the bottom bar is S15500 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 280 | |
| 290 to 430 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 190 |
| Elongation at Break, % | 9.6 to 14 | |
| 6.8 to 16 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 69 to 70 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 140 to 290 | |
| 890 to 1490 |
| Tensile Strength: Yield (Proof), MPa | 94 to 200 | |
| 590 to 1310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 to 280 | |
| 280 |
| Melting Completion (Liquidus), °C | 1380 to 1390 | |
| 1430 |
| Melting Onset (Solidus), °C | 1340 to 1350 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Conductivity, W/m-K | 41 to 43 | |
| 17 |
| Thermal Expansion, µm/m-K | 12 to 14 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 to 7.6 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.1 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 to 3.0 | |
| 13 |
| Density, g/cm3 | 7.5 to 7.6 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.7 | |
| 2.7 |
| Embodied Energy, MJ/kg | 21 to 24 | |
| 39 |
| Embodied Water, L/kg | 44 to 51 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 25 | |
| 98 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 25 to 110 | |
| 890 to 4460 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 5.2 to 11 | |
| 32 to 53 |
| Strength to Weight: Bending, points | 8.0 to 13 | |
| 26 to 37 |
| Thermal Diffusivity, mm2/s | 11 to 12 | |
| 4.6 |
| Thermal Shock Resistance, points | 4.2 to 8.6 | |
| 30 to 50 |