SAE-AISI H42 Steel vs. Nickel 718
SAE-AISI H42 steel belongs to the iron alloys classification, while nickel 718 belongs to the nickel alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI H42 steel and the bottom bar is nickel 718.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
190 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 77 | |
75 |
Tensile Strength: Ultimate (UTS), MPa | 700 to 1980 | |
930 to 1530 |
Thermal Properties
Latent Heat of Fusion, J/g | 260 | |
310 |
Melting Completion (Liquidus), °C | 1620 | |
1340 |
Melting Onset (Solidus), °C | 1570 | |
1260 |
Specific Heat Capacity, J/kg-K | 440 | |
450 |
Thermal Conductivity, W/m-K | 24 | |
11 |
Thermal Expansion, µm/m-K | 12 | |
13 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 24 | |
75 |
Density, g/cm3 | 8.4 | |
8.3 |
Embodied Carbon, kg CO2/kg material | 8.8 | |
13 |
Embodied Energy, MJ/kg | 130 | |
190 |
Embodied Water, L/kg | 98 | |
250 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 23 | |
23 |
Strength to Weight: Axial, points | 23 to 65 | |
31 to 51 |
Strength to Weight: Bending, points | 21 to 42 | |
25 to 35 |
Thermal Diffusivity, mm2/s | 6.5 | |
3.0 |
Thermal Shock Resistance, points | 20 to 57 | |
27 to 44 |
Alloy Composition
Aluminum (Al), % | 0 | |
0.2 to 0.8 |
Boron (B), % | 0 | |
0 to 0.0060 |
Carbon (C), % | 0.55 to 0.7 | |
0 to 0.080 |
Chromium (Cr), % | 3.8 to 4.5 | |
17 to 21 |
Cobalt (Co), % | 0 | |
0 to 1.0 |
Copper (Cu), % | 0 to 0.25 | |
0 to 0.3 |
Iron (Fe), % | 79.3 to 83.8 | |
11.1 to 24.6 |
Manganese (Mn), % | 0.15 to 0.4 | |
0 to 0.35 |
Molybdenum (Mo), % | 4.5 to 5.5 | |
2.8 to 3.3 |
Nickel (Ni), % | 0 to 0.3 | |
50 to 55 |
Niobium (Nb), % | 0 | |
4.8 to 5.5 |
Phosphorus (P), % | 0 to 0.030 | |
0 to 0.015 |
Silicon (Si), % | 0 | |
0 to 0.35 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.015 |
Titanium (Ti), % | 0 | |
0.65 to 1.2 |
Tungsten (W), % | 5.5 to 6.8 | |
0 |
Vanadium (V), % | 1.8 to 2.2 | |
0 |