Grade 350 Maraging Steel vs. Nickel 718
Grade 350 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 350 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, % | 4.1 to 18 | |
| 12 to 50 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Rockwell C Hardness | 34 to 60 | |
| 40 |
| Shear Modulus, GPa | 75 | |
| 75 |
| Shear Strength, MPa | 710 to 1400 | |
| 660 to 950 |
| Tensile Strength: Ultimate (UTS), MPa | 1140 to 2420 | |
| 930 to 1530 |
| Tensile Strength: Yield (Proof), MPa | 830 to 2300 | |
| 510 to 1330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 310 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1340 |
| Melting Onset (Solidus), °C | 1420 | |
| 1260 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 450 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 39 | |
| 75 |
| Density, g/cm3 | 8.2 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 5.6 | |
| 13 |
| Embodied Energy, MJ/kg | 74 | |
| 190 |
| Embodied Water, L/kg | 160 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 98 to 190 | |
| 140 to 390 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 23 |
| Strength to Weight: Axial, points | 38 to 82 | |
| 31 to 51 |
| Strength to Weight: Bending, points | 29 to 49 | |
| 25 to 35 |
| Thermal Shock Resistance, points | 35 to 74 | |
| 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), % | 11.5 to 12.5 | |
| 0 to 1.0 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 61.2 to 64.6 | |
| 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), % | 1.3 to 1.6 | |
| 0.65 to 1.2 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |