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Grade CW6M Nickel vs. SAE-AISI O7 Steel

Grade CW6M nickel belongs to the nickel alloys classification, while SAE-AISI O7 steel belongs to the iron 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 grade CW6M nickel and the bottom bar is SAE-AISI O7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
73
Tensile Strength: Ultimate (UTS), MPa 560
680 to 2110

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Melting Completion (Liquidus), °C 1530
1480
Melting Onset (Solidus), °C 1470
1430
Specific Heat Capacity, J/kg-K 430
470
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 65
6.0
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 13
2.3
Embodied Energy, MJ/kg 170
33
Embodied Water, L/kg 300
52

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
24 to 74
Strength to Weight: Bending, points 17
22 to 46
Thermal Shock Resistance, points 16
23 to 70

Alloy Composition

Carbon (C), % 0 to 0.070
1.1 to 1.3
Chromium (Cr), % 17 to 20
0.35 to 0.85
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 3.0
92.9 to 97.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 17 to 20
0 to 0.3
Nickel (Ni), % 54.9 to 66
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.0 to 2.0
Vanadium (V), % 0
0 to 0.4