Grade 300 Maraging Steel vs. Austempered Cast Iron
Both grade 300 maraging steel and austempered cast iron are iron alloys. They have 68% 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 grade 300 maraging steel 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, % | 6.5 to 18 | |
| 1.1 to 13 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 62 to 69 |
| Tensile Strength: Ultimate (UTS), MPa | 1030 to 2030 | |
| 860 to 1800 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1990 | |
| 560 to 1460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1380 |
| Melting Onset (Solidus), °C | 1430 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 490 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 34 | |
| 2.9 |
| Density, g/cm3 | 8.2 | |
| 7.5 |
| Embodied Carbon, kg CO2/kg material | 5.1 | |
| 1.8 |
| Embodied Energy, MJ/kg | 68 | |
| 25 |
| Embodied Water, L/kg | 150 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 170 | |
| 19 to 95 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 25 |
| Strength to Weight: Axial, points | 35 to 68 | |
| 32 to 66 |
| Strength to Weight: Bending, points | 28 to 43 | |
| 27 to 44 |
| Thermal Shock Resistance, points | 31 to 62 | |
| 25 to 53 |
Alloy Composition
| Aluminum (Al), % | 0.050 to 0.15 | |
| 0 to 0.050 |
| Arsenic (As), % | 0 | |
| 0 to 0.020 |
| Boron (B), % | 0 to 0.0030 | |
| 0 |
| Calcium (Ca), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 to 0.030 | |
| 3.4 to 3.8 |
| Chromium (Cr), % | 0 | |
| 0 to 0.1 |
| Cobalt (Co), % | 8.5 to 9.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.8 |
| Iron (Fe), % | 65 to 68.4 | |
| 89.6 to 94 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.040 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.3 to 0.4 |
| Molybdenum (Mo), % | 4.6 to 5.2 | |
| 0 to 0.3 |
| Nickel (Ni), % | 18 to 19 | |
| 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 0.1 | |
| 2.3 to 2.7 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.020 |
| Tin (Sn), % | 0 | |
| 0 to 0.020 |
| Titanium (Ti), % | 0.5 to 0.8 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0 to 0.1 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |