Grey Cast Iron vs. Nickel 690
Grey cast iron belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is grey cast iron and the bottom bar is nickel 690.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 300 | |
| 90 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 200 |
| Elongation at Break, % | 9.6 | |
| 3.4 to 34 |
| Fatigue Strength, MPa | 69 to 170 | |
| 180 to 300 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 69 | |
| 79 |
| Shear Strength, MPa | 180 to 610 | |
| 420 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 160 to 450 | |
| 640 to 990 |
| Tensile Strength: Yield (Proof), MPa | 98 to 290 | |
| 250 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 320 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1380 |
| Melting Onset (Solidus), °C | 1180 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 470 |
| Thermal Conductivity, W/m-K | 46 | |
| 14 |
| Thermal Expansion, µm/m-K | 11 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 1.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.9 | |
| 1.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 50 |
| Density, g/cm3 | 7.5 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 8.2 |
| Embodied Energy, MJ/kg | 21 | |
| 120 |
| Embodied Water, L/kg | 44 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 37 | |
| 31 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 27 to 240 | |
| 160 to 1440 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 5.8 to 17 | |
| 21 to 33 |
| Strength to Weight: Bending, points | 8.7 to 17 | |
| 20 to 27 |
| Thermal Diffusivity, mm2/s | 13 | |
| 3.5 |
| Thermal Shock Resistance, points | 6.0 to 17 | |
| 16 to 25 |
Alloy Composition
| Carbon (C), % | 3.1 to 3.4 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 27 to 31 |
| Copper (Cu), % | 0 | |
| 0 to 0.5 |
| Iron (Fe), % | 92.1 to 93.9 | |
| 7.0 to 11 |
| Manganese (Mn), % | 0.5 to 0.7 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 58 to 66 |
| Phosphorus (P), % | 0 to 0.9 | |
| 0 |
| Silicon (Si), % | 2.5 to 2.8 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.15 | |
| 0 to 0.015 |