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Grade CW12MW Nickel vs. SAE-AISI M6 Steel

Grade CW12MW nickel belongs to the nickel alloys classification, while SAE-AISI M6 steel belongs to the iron alloys. They have a modest 20% 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 (9, in this case) are not shown.

For each property being compared, the top bar is grade CW12MW nickel and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 85
77
Tensile Strength: Ultimate (UTS), MPa 560
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1610
1560
Melting Onset (Solidus), °C 1560
1510
Specific Heat Capacity, J/kg-K 410
440
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
39
Density, g/cm3 9.1
8.4
Embodied Carbon, kg CO2/kg material 13
8.0
Embodied Energy, MJ/kg 180
120
Embodied Water, L/kg 280
160

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 17
28 to 73
Strength to Weight: Bending, points 17
24 to 45
Thermal Shock Resistance, points 16
26 to 68

Alloy Composition

Carbon (C), % 0 to 0.12
0.75 to 0.85
Chromium (Cr), % 15.5 to 17.5
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
Iron (Fe), % 4.5 to 7.5
68.8 to 74.6
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 16 to 18
4.5 to 5.5
Nickel (Ni), % 49.2 to 60.1
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 3.8 to 5.3
3.8 to 4.8
Vanadium (V), % 0.2 to 0.4
1.3 to 1.7