Grey Cast Iron vs. ZA-8
Grey cast iron belongs to the iron alloys classification, while ZA-8 belongs to the zinc alloys. There are 31 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 grey cast iron and the bottom bar is ZA-8.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 300 | |
| 87 to 100 |
| Compressive (Crushing) Strength, MPa | 570 to 1290 | |
| 210 to 250 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 85 to 86 |
| Elongation at Break, % | 9.6 | |
| 1.3 to 8.0 |
| Fatigue Strength, MPa | 69 to 170 | |
| 51 to 100 |
| Poisson's Ratio | 0.29 | |
| 0.26 |
| Shear Modulus, GPa | 69 | |
| 34 |
| Shear Strength, MPa | 180 to 610 | |
| 240 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 160 to 450 | |
| 210 to 370 |
| Tensile Strength: Yield (Proof), MPa | 98 to 290 | |
| 210 to 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 110 |
| Melting Completion (Liquidus), °C | 1380 | |
| 400 |
| Melting Onset (Solidus), °C | 1180 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 440 |
| Thermal Conductivity, W/m-K | 46 | |
| 120 |
| Thermal Expansion, µm/m-K | 11 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 28 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.9 | |
| 40 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 11 |
| Density, g/cm3 | 7.5 | |
| 6.3 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 3.3 |
| Embodied Energy, MJ/kg | 21 | |
| 62 |
| Embodied Water, L/kg | 44 | |
| 420 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 37 | |
| 2.8 to 28 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 27 to 240 | |
| 260 to 490 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 5.8 to 17 | |
| 9.3 to 17 |
| Strength to Weight: Bending, points | 8.7 to 17 | |
| 12 to 18 |
| Thermal Diffusivity, mm2/s | 13 | |
| 42 |
| Thermal Shock Resistance, points | 6.0 to 17 | |
| 7.6 to 13 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 8.0 to 8.8 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0060 |
| Carbon (C), % | 3.1 to 3.4 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.8 to 1.3 |
| Iron (Fe), % | 92.1 to 93.9 | |
| 0 to 0.075 |
| Lead (Pb), % | 0 | |
| 0 to 0.0060 |
| Magnesium (Mg), % | 0 | |
| 0.015 to 0.030 |
| Manganese (Mn), % | 0.5 to 0.7 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.020 |
| Phosphorus (P), % | 0 to 0.9 | |
| 0 |
| Silicon (Si), % | 2.5 to 2.8 | |
| 0 to 0.045 |
| Sulfur (S), % | 0 to 0.15 | |
| 0 |
| Tin (Sn), % | 0 | |
| 0 to 0.0030 |
| Zinc (Zn), % | 0 | |
| 89.7 to 91.2 |