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Grade 364 Molybdenum vs. SAE-AISI 1140 Steel

Grade 364 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 364 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, % 6.2 to 11
14 to 18
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 120
72
Tensile Strength: Ultimate (UTS), MPa 580 to 720
600 to 700
Tensile Strength: Yield (Proof), MPa 350 to 620
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 43 to 57
89 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 630
310 to 870
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 16 to 20
21 to 25
Strength to Weight: Bending, points 15 to 17
20 to 22
Thermal Shock Resistance, points 19 to 24
18 to 21

Alloy Composition

Carbon (C), % 0.010 to 0.040
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), % 99.2 to 99.5
0
Nickel (Ni), % 0 to 0.0050
0
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.030
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0
0.080 to 0.13
Titanium (Ti), % 0.4 to 0.55
0
Zirconium (Zr), % 0.060 to 0.12
0