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SAE-AISI M2 Steel vs. Grade CY40 Nickel

SAE-AISI M2 steel belongs to the iron alloys classification, while grade CY40 nickel belongs to the nickel alloys. There are 21 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 CY40 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
540

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Melting Completion (Liquidus), °C 1610
1350
Melting Onset (Solidus), °C 1570
1300
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
14
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
55
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 8.8
9.1
Embodied Energy, MJ/kg 130
130
Embodied Water, L/kg 98
260

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 25 to 71
18
Strength to Weight: Bending, points 22 to 44
18
Thermal Diffusivity, mm2/s 5.9
3.7
Thermal Shock Resistance, points 27 to 76
16

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.4
Chromium (Cr), % 3.8 to 4.5
14 to 17
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.5 to 83.4
0 to 11
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
67 to 86
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0 to 3.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0