Austempered Cast Iron vs. Grade 350 Maraging Steel
Both austempered cast iron and grade 350 maraging steel are iron alloys. They have 64% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is austempered cast iron and the bottom bar is grade 350 maraging steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 190 |
| Elongation at Break, % | 1.1 to 13 | |
| 4.1 to 18 |
| Poisson's Ratio | 0.29 | |
| 0.3 |
| Shear Modulus, GPa | 62 to 69 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 860 to 1800 | |
| 1140 to 2420 |
| Tensile Strength: Yield (Proof), MPa | 560 to 1460 | |
| 830 to 2300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 270 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1470 |
| Melting Onset (Solidus), °C | 1340 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 450 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 39 |
| Density, g/cm3 | 7.5 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 5.6 |
| Embodied Energy, MJ/kg | 25 | |
| 74 |
| Embodied Water, L/kg | 48 | |
| 160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 to 95 | |
| 98 to 190 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 32 to 66 | |
| 38 to 82 |
| Strength to Weight: Bending, points | 27 to 44 | |
| 29 to 49 |
| Thermal Shock Resistance, points | 25 to 53 | |
| 35 to 74 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.050 | |
| 0.050 to 0.15 |
| Arsenic (As), % | 0 to 0.020 | |
| 0 |
| Boron (B), % | 0 | |
| 0 to 0.0030 |
| Calcium (Ca), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 3.4 to 3.8 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0 |
| Cobalt (Co), % | 0 | |
| 11.5 to 12.5 |
| Copper (Cu), % | 0 to 0.8 | |
| 0 |
| Iron (Fe), % | 89.6 to 94 | |
| 61.2 to 64.6 |
| Magnesium (Mg), % | 0 to 0.040 | |
| 0 |
| Manganese (Mn), % | 0.3 to 0.4 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 to 0.3 | |
| 4.6 to 5.2 |
| Nickel (Ni), % | 0 to 2.0 | |
| 18 to 19 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.010 |
| Selenium (Se), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 2.3 to 2.7 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.010 |
| Tin (Sn), % | 0 to 0.020 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 1.3 to 1.6 |
| Vanadium (V), % | 0 to 0.1 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.020 |