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SAE-AISI S7 Steel vs. N08120 Nickel

SAE-AISI S7 steel belongs to the iron alloys classification, while N08120 nickel belongs to the nickel alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S7 steel and the bottom bar is N08120 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 670 to 2030
700

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
11
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
45
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.3
7.2
Embodied Energy, MJ/kg 31
100
Embodied Water, L/kg 65
240

Common Calculations

PREN (Pitting Resistance) 8.4
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 72
24
Strength to Weight: Bending, points 22 to 46
21
Thermal Diffusivity, mm2/s 11
3.0
Thermal Shock Resistance, points 22 to 66
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Boron (B), % 0
0 to 0.010
Carbon (C), % 0.45 to 0.55
0.020 to 0.1
Chromium (Cr), % 3.0 to 3.5
23 to 27
Cobalt (Co), % 0
0 to 3.0
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 91.6 to 94.9
21 to 41.4
Manganese (Mn), % 0.2 to 0.9
0 to 1.5
Molybdenum (Mo), % 1.3 to 1.8
0 to 2.5
Nickel (Ni), % 0
35 to 39
Niobium (Nb), % 0
0.4 to 0.9
Nitrogen (N), % 0
0.15 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 0
0 to 2.5
Vanadium (V), % 0 to 0.3
0