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Grade 365 Molybdenum vs. SAE-AISI A9 Steel

Grade 365 molybdenum belongs to the otherwise unclassified metals classification, while SAE-AISI A9 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 365 molybdenum and the bottom bar is SAE-AISI A9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
190
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 120
74
Tensile Strength: Ultimate (UTS), MPa 620
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Specific Heat Capacity, J/kg-K 250
470
Thermal Expansion, µm/m-K 7.0
12

Otherwise Unclassified Properties

Density, g/cm3 10
7.8
Embodied Carbon, kg CO2/kg material 28
4.7
Embodied Energy, MJ/kg 330
70
Embodied Water, L/kg 360
82

Common Calculations

Stiffness to Weight: Axial, points 17
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 17
28 to 73
Strength to Weight: Bending, points 16
24 to 46
Thermal Shock Resistance, points 21
25 to 66

Alloy Composition

Carbon (C), % 0 to 0.010
0.45 to 0.55
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.010
87 to 90.5
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 99.9 to 100
1.3 to 1.8
Nickel (Ni), % 0 to 0.0020
1.3 to 1.8
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0015
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
1.0 to 1.2
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.8 to 1.4