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SAE-AISI M2 Steel vs. Grade 365 Molybdenum

SAE-AISI M2 steel belongs to the iron alloys classification, while grade 365 molybdenum belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (10, 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 365 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
310
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 77
120
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
620

Thermal Properties

Latent Heat of Fusion, J/g 260
370
Specific Heat Capacity, J/kg-K 440
250
Thermal Expansion, µm/m-K 10
7.0

Otherwise Unclassified Properties

Density, g/cm3 8.4
10
Embodied Carbon, kg CO2/kg material 8.8
28
Embodied Energy, MJ/kg 130
330
Embodied Water, L/kg 98
360

Common Calculations

Stiffness to Weight: Axial, points 13
17
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 25 to 71
17
Strength to Weight: Bending, points 22 to 44
16
Thermal Shock Resistance, points 27 to 76
21

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.010
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.5 to 83.4
0 to 0.010
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.5 to 5.5
99.9 to 100
Nickel (Ni), % 0 to 0.3
0 to 0.0020
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0 to 0.010
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0