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Grade 363 Molybdenum vs. Grade 29 Titanium

Grade 363 molybdenum belongs to the otherwise unclassified metals classification, while grade 29 titanium belongs to the titanium 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. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is grade 363 molybdenum and the bottom bar is grade 29 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
110
Elongation at Break, % 6.2 to 11
6.8 to 11
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 120
40
Tensile Strength: Ultimate (UTS), MPa 580 to 720
930 to 940
Tensile Strength: Yield (Proof), MPa 350 to 620
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 370
410
Specific Heat Capacity, J/kg-K 250
560
Thermal Expansion, µm/m-K 7.0
9.3

Otherwise Unclassified Properties

Density, g/cm3 10
4.5
Embodied Carbon, kg CO2/kg material 28
39
Embodied Energy, MJ/kg 330
640
Embodied Water, L/kg 360
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 57
62 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 630
3420 to 3540
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 22
35
Strength to Weight: Axial, points 16 to 20
58 to 59
Strength to Weight: Bending, points 15 to 17
47 to 48
Thermal Shock Resistance, points 19 to 24
68 to 69

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.010 to 0.030
0 to 0.080
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.010
0 to 0.25
Molybdenum (Mo), % 99.3 to 99.5
0
Nickel (Ni), % 0 to 0.0020
0
Nitrogen (N), % 0 to 0.0020
0 to 0.030
Oxygen (O), % 0 to 0.0030
0 to 0.13
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.010
0
Titanium (Ti), % 0.4 to 0.55
88 to 90.9
Vanadium (V), % 0
3.5 to 4.5
Zirconium (Zr), % 0.060 to 0.12
0
Residuals, % 0
0 to 0.4