ASTM B522 Class II vs. Grey Cast Iron
ASTM B522 class II belongs to the otherwise unclassified metals classification, while grey cast iron belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is ASTM B522 class II and the bottom bar is grey cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 96 | |
| 180 |
| Elongation at Break, % | 1.1 to 28 | |
| 9.6 |
| Poisson's Ratio | 0.41 | |
| 0.29 |
| Shear Modulus, GPa | 34 | |
| 69 |
| Shear Strength, MPa | 180 to 280 | |
| 180 to 610 |
| Tensile Strength: Ultimate (UTS), MPa | 280 to 490 | |
| 160 to 450 |
| Tensile Strength: Yield (Proof), MPa | 120 to 210 | |
| 98 to 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 77 | |
| 280 |
| Melting Completion (Liquidus), °C | 1030 | |
| 1380 |
| Melting Onset (Solidus), °C | 1030 | |
| 1180 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 490 |
| Thermal Expansion, µm/m-K | 15 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.7 | |
| 8.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 7.5 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 4.4 to 63 | |
| 13 to 37 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 75 to 230 | |
| 27 to 240 |
| Stiffness to Weight: Axial, points | 3.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 25 |
| Strength to Weight: Axial, points | 4.4 to 7.8 | |
| 5.8 to 17 |
| Strength to Weight: Bending, points | 5.5 to 8.0 | |
| 8.7 to 17 |
| Thermal Shock Resistance, points | 13 to 24 | |
| 6.0 to 17 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 3.1 to 3.4 |
| Gold (Au), % | 68.5 to 69.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 92.1 to 93.9 |
| Manganese (Mn), % | 0 | |
| 0.5 to 0.7 |
| Phosphorus (P), % | 0 | |
| 0 to 0.9 |
| Platinum (Pt), % | 5.5 to 6.5 | |
| 0 |
| Silicon (Si), % | 0 | |
| 2.5 to 2.8 |
| Silver (Ag), % | 24.5 to 25.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.15 |
| Residuals, % | 0 to 0.26 | |
| 0 |