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Grade CW12MW Nickel vs. SAE-AISI M46 Steel

Grade CW12MW nickel belongs to the nickel alloys classification, while SAE-AISI M46 steel belongs to the iron alloys. They have a modest 22% 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 M46 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
800 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Melting Completion (Liquidus), °C 1610
1540
Melting Onset (Solidus), °C 1560
1500
Specific Heat Capacity, J/kg-K 410
450
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
33
Density, g/cm3 9.1
8.1
Embodied Carbon, kg CO2/kg material 13
12
Embodied Energy, MJ/kg 180
180
Embodied Water, L/kg 280
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 17
27 to 78
Strength to Weight: Bending, points 17
24 to 48
Thermal Shock Resistance, points 16
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.12
1.2 to 1.3
Chromium (Cr), % 15.5 to 17.5
3.7 to 4.2
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 4.5 to 7.5
70 to 73.8
Manganese (Mn), % 0 to 1.0
0.2 to 0.4
Molybdenum (Mo), % 16 to 18
8.0 to 8.5
Nickel (Ni), % 49.2 to 60.1
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.4 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 3.8 to 5.3
1.9 to 2.2
Vanadium (V), % 0.2 to 0.4
3.0 to 3.3