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Grade 363 Molybdenum vs. SAE-AISI M48 Steel

Grade 363 molybdenum belongs to the otherwise unclassified metals classification, while SAE-AISI M48 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (8, 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 M48 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
78
Tensile Strength: Ultimate (UTS), MPa 580 to 720
890 to 2390

Thermal Properties

Latent Heat of Fusion, J/g 370
260
Specific Heat Capacity, J/kg-K 250
420
Thermal Expansion, µm/m-K 7.0
12

Otherwise Unclassified Properties

Density, g/cm3 10
8.7
Embodied Carbon, kg CO2/kg material 28
13
Embodied Energy, MJ/kg 330
190
Embodied Water, L/kg 360
160

Common Calculations

Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 22
22
Strength to Weight: Axial, points 16 to 20
28 to 76
Strength to Weight: Bending, points 15 to 17
23 to 45
Thermal Shock Resistance, points 19 to 24
26 to 71

Alloy Composition

Carbon (C), % 0.010 to 0.030
1.4 to 1.5
Chromium (Cr), % 0
3.5 to 4.0
Cobalt (Co), % 0
8.0 to 10
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.010
63.8 to 69.8
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 99.3 to 99.5
4.8 to 5.5
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
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.4 to 0.55
0
Tungsten (W), % 0
9.5 to 10.5
Vanadium (V), % 0
2.8 to 3.3
Zirconium (Zr), % 0.060 to 0.12
0