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Grade 366 Molybdenum vs. SAE-AISI S2 Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while SAE-AISI S2 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is SAE-AISI S2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
190
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 120
72
Tensile Strength: Ultimate (UTS), MPa 580
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Specific Heat Capacity, J/kg-K 210
470
Thermal Expansion, µm/m-K 7.6
11

Otherwise Unclassified Properties

Density, g/cm3 12
7.8
Embodied Carbon, kg CO2/kg material 27
2.1
Embodied Energy, MJ/kg 340
30
Embodied Water, L/kg 300
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 13
24 to 69
Strength to Weight: Bending, points 13
22 to 44
Thermal Shock Resistance, points 18
23 to 68

Alloy Composition

Carbon (C), % 0 to 0.030
0.4 to 0.55
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.010
96 to 98.1
Manganese (Mn), % 0
0.3 to 0.5
Molybdenum (Mo), % 66.9 to 73
0.3 to 0.6
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0025
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0.9 to 1.2
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 27 to 33
0
Vanadium (V), % 0
0 to 0.5