Type 4 Magnetic Alloy vs. Austempered Cast Iron
Type 4 magnetic alloy belongs to the nickel alloys classification, while austempered cast iron belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is Type 4 magnetic alloy and the bottom bar is austempered cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 180 |
| Elongation at Break, % | 2.0 to 40 | |
| 1.1 to 13 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 62 to 69 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 1100 | |
| 860 to 1800 |
| Tensile Strength: Yield (Proof), MPa | 270 to 1040 | |
| 560 to 1460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 280 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1380 |
| Melting Onset (Solidus), °C | 1370 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 490 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 60 | |
| 2.9 |
| Density, g/cm3 | 8.8 | |
| 7.5 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 1.8 |
| Embodied Energy, MJ/kg | 140 | |
| 25 |
| Embodied Water, L/kg | 210 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 22 to 200 | |
| 19 to 95 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 190 to 2840 | |
| 880 to 3970 |
| Stiffness to Weight: Axial, points | 12 | |
| 13 |
| Stiffness to Weight: Bending, points | 22 | |
| 25 |
| Strength to Weight: Axial, points | 19 to 35 | |
| 32 to 66 |
| Strength to Weight: Bending, points | 18 to 27 | |
| 27 to 44 |
| Thermal Shock Resistance, points | 21 to 37 | |
| 25 to 53 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.050 |
| Arsenic (As), % | 0 | |
| 0 to 0.020 |
| Carbon (C), % | 0 to 0.050 | |
| 3.4 to 3.8 |
| Chromium (Cr), % | 0 to 0.3 | |
| 0 to 0.1 |
| Cobalt (Co), % | 0 to 0.5 | |
| 0 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 to 0.8 |
| Iron (Fe), % | 9.5 to 17.5 | |
| 89.6 to 94 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.040 |
| Manganese (Mn), % | 0 to 0.8 | |
| 0.3 to 0.4 |
| Molybdenum (Mo), % | 3.5 to 6.0 | |
| 0 to 0.3 |
| Nickel (Ni), % | 79 to 82 | |
| 0 to 2.0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.040 |
| Selenium (Se), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.5 | |
| 2.3 to 2.7 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.020 |
| Tin (Sn), % | 0 | |
| 0 to 0.020 |
| Vanadium (V), % | 0 | |
| 0 to 0.1 |