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Grade 360 Molybdenum vs. SAE-AISI 50B50 Steel

Grade 360 molybdenum belongs to the otherwise unclassified metals classification, while SAE-AISI 50B50 steel belongs to the iron alloys. There are 20 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 360 molybdenum and the bottom bar is SAE-AISI 50B50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
190
Elongation at Break, % 6.3 to 17
22
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 120
73
Tensile Strength: Ultimate (UTS), MPa 430 to 620
590
Tensile Strength: Yield (Proof), MPa 270 to 530
370

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
19
Embodied Water, L/kg 360
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 64
110
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 450
370
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 12 to 17
21
Strength to Weight: Bending, points 12 to 16
20
Thermal Shock Resistance, points 14 to 21
17

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.030
0.48 to 0.53
Chromium (Cr), % 0
0.4 to 0.6
Iron (Fe), % 0 to 0.010
97.4 to 98.2
Manganese (Mn), % 0
0.75 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 0.035
Silicon (Si), % 0 to 0.010
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040