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Grade 363 Molybdenum vs. SAE-AISI M3 Class 1 Steel

Grade 363 molybdenum belongs to the otherwise unclassified metals classification, while SAE-AISI M3 class 1 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 363 molybdenum and the bottom bar is SAE-AISI M3 class 1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
200
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 120
77
Tensile Strength: Ultimate (UTS), MPa 580 to 720
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 370
260
Specific Heat Capacity, J/kg-K 250
440
Thermal Expansion, µm/m-K 7.0
12

Otherwise Unclassified Properties

Density, g/cm3 10
8.3
Embodied Carbon, kg CO2/kg material 28
10
Embodied Energy, MJ/kg 330
150
Embodied Water, L/kg 360
100

Common Calculations

Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 16 to 20
26 to 72
Strength to Weight: Bending, points 15 to 17
22 to 44
Thermal Shock Resistance, points 19 to 24
24 to 67

Alloy Composition

Carbon (C), % 0.010 to 0.030
1.0 to 1.1
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.010
76.9 to 82.9
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 99.3 to 99.5
4.8 to 6.5
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0030
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.4 to 0.55
0
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.3 to 2.8
Zirconium (Zr), % 0.060 to 0.12
0