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SAE-AISI M2 Steel vs. Grade CW12MW Nickel

SAE-AISI M2 steel belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel 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 SAE-AISI M2 steel and the bottom bar is grade CW12MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
85
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
560

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1610
1610
Melting Onset (Solidus), °C 1570
1560
Specific Heat Capacity, J/kg-K 440
410
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
70
Density, g/cm3 8.4
9.1
Embodied Carbon, kg CO2/kg material 8.8
13
Embodied Energy, MJ/kg 130
180
Embodied Water, L/kg 98
280

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 25 to 71
17
Strength to Weight: Bending, points 22 to 44
17
Thermal Shock Resistance, points 27 to 76
16

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.12
Chromium (Cr), % 3.8 to 4.5
15.5 to 17.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.5 to 83.4
4.5 to 7.5
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.5 to 5.5
16 to 18
Nickel (Ni), % 0 to 0.3
49.2 to 60.1
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
3.8 to 5.3
Vanadium (V), % 1.8 to 2.2
0.2 to 0.4