Ductile Cast Iron vs. ZA-27
Ductile cast iron belongs to the iron alloys classification, while ZA-27 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 ductile cast iron and the bottom bar is ZA-27.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 310 | |
| 100 to 120 |
| Elastic (Young's, Tensile) Modulus, GPa | 170 to 180 | |
| 78 |
| Elongation at Break, % | 2.1 to 20 | |
| 2.0 to 4.5 |
| Fracture Toughness, MPa-m1/2 | 14 to 30 | |
| 20 to 24 |
| Poisson's Ratio | 0.28 to 0.31 | |
| 0.27 |
| Shear Modulus, GPa | 64 to 70 | |
| 31 |
| Shear Strength, MPa | 420 to 800 | |
| 230 to 330 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 920 | |
| 400 to 430 |
| Tensile Strength: Yield (Proof), MPa | 310 to 670 | |
| 260 to 370 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 130 |
| Maximum Temperature: Mechanical, °C | 290 | |
| 120 |
| Melting Completion (Liquidus), °C | 1160 | |
| 480 |
| Melting Onset (Solidus), °C | 1120 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 530 |
| Thermal Conductivity, W/m-K | 31 to 36 | |
| 130 |
| Thermal Expansion, µm/m-K | 11 | |
| 26 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 30 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.4 | |
| 53 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 11 |
| Density, g/cm3 | 7.1 to 7.5 | |
| 5.0 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 4.2 |
| Embodied Energy, MJ/kg | 21 | |
| 80 |
| Embodied Water, L/kg | 43 | |
| 570 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 to 80 | |
| 8.1 to 18 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 to 1330 | |
| 420 to 890 |
| Stiffness to Weight: Axial, points | 12 to 14 | |
| 8.6 |
| Stiffness to Weight: Bending, points | 24 to 26 | |
| 28 |
| Strength to Weight: Axial, points | 17 to 35 | |
| 22 to 24 |
| Strength to Weight: Bending, points | 18 to 29 | |
| 24 to 25 |
| Thermal Diffusivity, mm2/s | 8.9 to 10 | |
| 47 |
| Thermal Shock Resistance, points | 17 to 35 | |
| 14 to 15 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 25 to 28 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0060 |
| Carbon (C), % | 3.0 to 3.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 2.0 to 2.5 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 | |
| 0 to 0.0060 |
| Magnesium (Mg), % | 0 | |
| 0.010 to 0.020 |
| Nickel (Ni), % | 0 | |
| 0 to 0.020 |
| Phosphorus (P), % | 0 to 0.080 | |
| 0 |
| Silicon (Si), % | 1.5 to 2.8 | |
| 0 to 0.080 |
| Tin (Sn), % | 0 | |
| 0 to 0.0030 |
| Zinc (Zn), % | 0 | |
| 69.3 to 73 |