Grey Cast Iron vs. AISI 304L Stainless Steel
Both grey cast iron and AISI 304L stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is grey cast iron and the bottom bar is AISI 304L stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 300 | |
| 160 to 350 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 200 |
| Elongation at Break, % | 9.6 | |
| 6.7 to 46 |
| Fatigue Strength, MPa | 69 to 170 | |
| 170 to 430 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 69 | |
| 77 |
| Shear Strength, MPa | 180 to 610 | |
| 370 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 160 to 450 | |
| 540 to 1160 |
| Tensile Strength: Yield (Proof), MPa | 98 to 290 | |
| 190 to 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1450 |
| Melting Onset (Solidus), °C | 1180 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Conductivity, W/m-K | 46 | |
| 16 |
| Thermal Expansion, µm/m-K | 11 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.9 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 16 |
| Density, g/cm3 | 7.5 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 3.1 |
| Embodied Energy, MJ/kg | 21 | |
| 44 |
| Embodied Water, L/kg | 44 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 37 | |
| 71 to 240 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 27 to 240 | |
| 92 to 1900 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 5.8 to 17 | |
| 19 to 41 |
| Strength to Weight: Bending, points | 8.7 to 17 | |
| 19 to 31 |
| Thermal Diffusivity, mm2/s | 13 | |
| 4.2 |
| Thermal Shock Resistance, points | 6.0 to 17 | |
| 12 to 25 |
Alloy Composition
| Carbon (C), % | 3.1 to 3.4 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 | |
| 18 to 20 |
| Iron (Fe), % | 92.1 to 93.9 | |
| 65 to 74 |
| Manganese (Mn), % | 0.5 to 0.7 | |
| 0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 8.0 to 12 |
| Nitrogen (N), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.9 | |
| 0 to 0.045 |
| Silicon (Si), % | 2.5 to 2.8 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.15 | |
| 0 to 0.030 |