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Grade 360 Molybdenum vs. SAE-AISI 1140 Steel

Grade 360 molybdenum belongs to the otherwise unclassified metals classification, while SAE-AISI 1140 steel belongs to the iron alloys. There are 20 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 360 molybdenum and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
190
Elongation at Break, % 6.3 to 17
14 to 18
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 120
72
Tensile Strength: Ultimate (UTS), MPa 430 to 620
600 to 700
Tensile Strength: Yield (Proof), MPa 270 to 530
340 to 570

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Specific Heat Capacity, J/kg-K 250
470
Thermal Expansion, µm/m-K 7.0
13

Otherwise Unclassified Properties

Density, g/cm3 10
7.8
Embodied Carbon, kg CO2/kg material 28
1.4
Embodied Energy, MJ/kg 330
18
Embodied Water, L/kg 360
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 64
89 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 450
310 to 870
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 12 to 17
21 to 25
Strength to Weight: Bending, points 12 to 16
20 to 22
Thermal Shock Resistance, points 14 to 21
18 to 21

Alloy Composition

Carbon (C), % 0 to 0.030
0.37 to 0.44
Iron (Fe), % 0 to 0.010
98.4 to 98.9
Manganese (Mn), % 0
0.7 to 1.0
Molybdenum (Mo), % 99.9 to 100
0
Nickel (Ni), % 0 to 0.0020
0
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0015
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0
Sulfur (S), % 0
0.080 to 0.13