Grade 300 Maraging Steel vs. Nickel 718
Grade 300 maraging steel belongs to the iron alloys classification, while nickel 718 belongs to the nickel alloys. They have 41% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is grade 300 maraging steel and the bottom bar is nickel 718.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 6.5 to 18 | |
| 12 to 50 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Rockwell C Hardness | 31 to 56 | |
| 40 |
| Shear Modulus, GPa | 75 | |
| 75 |
| Shear Strength, MPa | 640 to 1190 | |
| 660 to 950 |
| Tensile Strength: Ultimate (UTS), MPa | 1030 to 2030 | |
| 930 to 1530 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1990 | |
| 510 to 1330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 310 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1340 |
| Melting Onset (Solidus), °C | 1430 | |
| 1260 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 450 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 34 | |
| 75 |
| Density, g/cm3 | 8.2 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 5.1 | |
| 13 |
| Embodied Energy, MJ/kg | 68 | |
| 190 |
| Embodied Water, L/kg | 150 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 170 | |
| 140 to 390 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 23 |
| Strength to Weight: Axial, points | 35 to 68 | |
| 31 to 51 |
| Strength to Weight: Bending, points | 28 to 43 | |
| 25 to 35 |
| Thermal Shock Resistance, points | 31 to 62 | |
| 27 to 44 |
Alloy Composition
| Aluminum (Al), % | 0.050 to 0.15 | |
| 0.2 to 0.8 |
| Boron (B), % | 0 to 0.0030 | |
| 0 to 0.0060 |
| Calcium (Ca), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0 | |
| 17 to 21 |
| Cobalt (Co), % | 8.5 to 9.5 | |
| 0 to 1.0 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 65 to 68.4 | |
| 11.1 to 24.6 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.35 |
| Molybdenum (Mo), % | 4.6 to 5.2 | |
| 2.8 to 3.3 |
| Nickel (Ni), % | 18 to 19 | |
| 50 to 55 |
| Niobium (Nb), % | 0 | |
| 4.8 to 5.5 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0.5 to 0.8 | |
| 0.65 to 1.2 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |