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Grade 366 Molybdenum vs. SAE-AISI P2 Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while SAE-AISI P2 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 P2 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
73
Tensile Strength: Ultimate (UTS), MPa 580
330 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Specific Heat Capacity, J/kg-K 210
470
Thermal Expansion, µm/m-K 7.6
12

Otherwise Unclassified Properties

Density, g/cm3 12
7.9
Embodied Carbon, kg CO2/kg material 27
1.5
Embodied Energy, MJ/kg 340
20
Embodied Water, L/kg 300
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 13
12 to 70
Strength to Weight: Bending, points 13
14 to 45
Thermal Shock Resistance, points 18
11 to 65

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 0
0.75 to 1.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.010
96.6 to 98.8
Manganese (Mn), % 0
0.1 to 0.4
Molybdenum (Mo), % 66.9 to 73
0.15 to 0.4
Nickel (Ni), % 0 to 0.0020
0.1 to 0.5
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
0.1 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 27 to 33
0