Nickel 718 vs. SAE-AISI 9310 Steel
Nickel 718 belongs to the nickel alloys classification, while SAE-AISI 9310 steel belongs to the iron alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is nickel 718 and the bottom bar is SAE-AISI 9310 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 50 | |
| 17 to 19 |
| Fatigue Strength, MPa | 460 to 760 | |
| 300 to 390 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Shear Strength, MPa | 660 to 950 | |
| 510 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 930 to 1530 | |
| 820 to 910 |
| Tensile Strength: Yield (Proof), MPa | 510 to 1330 | |
| 450 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 980 | |
| 440 |
| Melting Completion (Liquidus), °C | 1340 | |
| 1460 |
| Melting Onset (Solidus), °C | 1260 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 470 |
| Thermal Conductivity, W/m-K | 11 | |
| 48 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.4 | |
| 7.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.5 | |
| 8.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 4.4 |
| Density, g/cm3 | 8.3 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 13 | |
| 1.8 |
| Embodied Energy, MJ/kg | 190 | |
| 24 |
| Embodied Water, L/kg | 250 | |
| 57 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 390 | |
| 120 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 660 to 4560 | |
| 540 to 860 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 31 to 51 | |
| 29 to 32 |
| Strength to Weight: Bending, points | 25 to 35 | |
| 25 to 27 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 13 |
| Thermal Shock Resistance, points | 27 to 44 | |
| 24 to 27 |
Alloy Composition
| Aluminum (Al), % | 0.2 to 0.8 | |
| 0 |
| Boron (B), % | 0 to 0.0060 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.080 to 0.13 |
| Chromium (Cr), % | 17 to 21 | |
| 1.0 to 1.4 |
| Cobalt (Co), % | 0 to 1.0 | |
| 0 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 |
| Iron (Fe), % | 11.1 to 24.6 | |
| 93.8 to 95.2 |
| Manganese (Mn), % | 0 to 0.35 | |
| 0.45 to 0.65 |
| Molybdenum (Mo), % | 2.8 to 3.3 | |
| 0.080 to 0.15 |
| Nickel (Ni), % | 50 to 55 | |
| 3.0 to 3.5 |
| Niobium (Nb), % | 4.8 to 5.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.35 | |
| 0.2 to 0.35 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.012 |
| Titanium (Ti), % | 0.65 to 1.2 | |
| 0 |