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SAE-AISI S7 Steel vs. Nickel 890

SAE-AISI S7 steel belongs to the iron alloys classification, while nickel 890 belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 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 SAE-AISI S7 steel and the bottom bar is nickel 890.

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
78
Tensile Strength: Ultimate (UTS), MPa 670 to 2030
590

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
47
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.3
8.2
Embodied Energy, MJ/kg 31
120
Embodied Water, L/kg 65
250

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 72
20
Strength to Weight: Bending, points 22 to 46
19
Thermal Shock Resistance, points 22 to 66
15

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.6
Carbon (C), % 0.45 to 0.55
0.060 to 0.14
Chromium (Cr), % 3.0 to 3.5
23.5 to 28.5
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 91.6 to 94.9
17.3 to 33.9
Manganese (Mn), % 0.2 to 0.9
0 to 1.5
Molybdenum (Mo), % 1.3 to 1.8
1.0 to 2.0
Nickel (Ni), % 0
40 to 45
Niobium (Nb), % 0
0.2 to 1.0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tantalum (Ta), % 0
0.1 to 0.6
Titanium (Ti), % 0
0.15 to 0.6
Vanadium (V), % 0 to 0.3
0