N08120 Nickel vs. SAE-AISI 4140 Steel
N08120 nickel belongs to the nickel alloys classification, while SAE-AISI 4140 steel belongs to the iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is N08120 nickel and the bottom bar is SAE-AISI 4140 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 34 | |
| 11 to 26 |
| Fatigue Strength, MPa | 230 | |
| 360 to 650 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 79 | |
| 73 |
| Shear Strength, MPa | 470 | |
| 410 to 660 |
| Tensile Strength: Ultimate (UTS), MPa | 700 | |
| 690 to 1080 |
| Tensile Strength: Yield (Proof), MPa | 310 | |
| 590 to 990 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1000 | |
| 420 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1460 |
| Melting Onset (Solidus), °C | 1370 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 11 | |
| 43 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 45 | |
| 2.4 |
| Density, g/cm3 | 8.2 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 7.2 | |
| 1.5 |
| Embodied Energy, MJ/kg | 100 | |
| 20 |
| Embodied Water, L/kg | 240 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 | |
| 74 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 240 | |
| 920 to 2590 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 24 | |
| 25 to 38 |
| Strength to Weight: Bending, points | 21 | |
| 22 to 30 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 12 |
| Thermal Shock Resistance, points | 17 | |
| 20 to 32 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.4 | |
| 0 |
| Boron (B), % | 0 to 0.010 | |
| 0 |
| Carbon (C), % | 0.020 to 0.1 | |
| 0.38 to 0.43 |
| Chromium (Cr), % | 23 to 27 | |
| 0.8 to 1.1 |
| Cobalt (Co), % | 0 to 3.0 | |
| 0 |
| Copper (Cu), % | 0 to 0.5 | |
| 0 |
| Iron (Fe), % | 21 to 41.4 | |
| 96.8 to 97.8 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0.75 to 1.0 |
| Molybdenum (Mo), % | 0 to 2.5 | |
| 0.15 to 0.25 |
| Nickel (Ni), % | 35 to 39 | |
| 0 |
| Niobium (Nb), % | 0.4 to 0.9 | |
| 0 |
| Nitrogen (N), % | 0.15 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 1.0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.040 |
| Titanium (Ti), % | 0 to 0.2 | |
| 0 |
| Tungsten (W), % | 0 to 2.5 | |
| 0 |