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SAE-AISI S7 Steel vs. Grade CW6M Nickel

SAE-AISI S7 steel belongs to the iron alloys classification, while grade CW6M nickel belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S7 steel and the bottom bar is grade CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
84
Tensile Strength: Ultimate (UTS), MPa 670 to 2030
560

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Melting Completion (Liquidus), °C 1460
1530
Melting Onset (Solidus), °C 1420
1470
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
65
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 2.3
13
Embodied Energy, MJ/kg 31
170
Embodied Water, L/kg 65
300

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24 to 72
18
Strength to Weight: Bending, points 22 to 46
17
Thermal Shock Resistance, points 22 to 66
16

Alloy Composition

Carbon (C), % 0.45 to 0.55
0 to 0.070
Chromium (Cr), % 3.0 to 3.5
17 to 20
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 91.6 to 94.9
0 to 3.0
Manganese (Mn), % 0.2 to 0.9
0 to 1.0
Molybdenum (Mo), % 1.3 to 1.8
17 to 20
Nickel (Ni), % 0
54.9 to 66
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
Vanadium (V), % 0 to 0.3
0