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Grade CW12MW Nickel vs. SAE-AISI D7 Steel

Grade CW12MW nickel belongs to the nickel alloys classification, while SAE-AISI D7 steel belongs to the iron alloys. They have a modest 21% 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 D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 85
73
Tensile Strength: Ultimate (UTS), MPa 560
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
10
Density, g/cm3 9.1
7.6
Embodied Carbon, kg CO2/kg material 13
11
Embodied Energy, MJ/kg 180
180
Embodied Water, L/kg 280
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 17
29 to 78
Strength to Weight: Bending, points 17
25 to 48
Thermal Shock Resistance, points 16
27 to 72

Alloy Composition

Carbon (C), % 0 to 0.12
2.2 to 2.5
Chromium (Cr), % 15.5 to 17.5
11.5 to 13.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 4.5 to 7.5
76.6 to 81.9
Manganese (Mn), % 0 to 1.0
0 to 0.6
Molybdenum (Mo), % 16 to 18
0.7 to 1.2
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 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 3.8 to 5.3
0
Vanadium (V), % 0.2 to 0.4
3.8 to 4.4