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Grade 363 Molybdenum vs. Titanium 6-6-2

Grade 363 molybdenum belongs to the otherwise unclassified metals classification, while titanium 6-6-2 belongs to the titanium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 titanium 6-6-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
120
Elongation at Break, % 6.2 to 11
6.7 to 9.0
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 120
44
Tensile Strength: Ultimate (UTS), MPa 580 to 720
1140 to 1370
Tensile Strength: Yield (Proof), MPa 350 to 620
1040 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 370
400
Specific Heat Capacity, J/kg-K 250
540
Thermal Expansion, µm/m-K 7.0
9.4

Otherwise Unclassified Properties

Density, g/cm3 10
4.8
Embodied Carbon, kg CO2/kg material 28
29
Embodied Energy, MJ/kg 330
470
Embodied Water, L/kg 360
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 57
89 to 99
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 22
34
Strength to Weight: Axial, points 16 to 20
66 to 79
Strength to Weight: Bending, points 15 to 17
50 to 57
Thermal Shock Resistance, points 19 to 24
75 to 90

Alloy Composition

Aluminum (Al), % 0
5.0 to 6.0
Carbon (C), % 0.010 to 0.030
0 to 0.050
Copper (Cu), % 0
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.010
0.35 to 1.0
Molybdenum (Mo), % 99.3 to 99.5
5.0 to 6.0
Nickel (Ni), % 0 to 0.0020
0
Nitrogen (N), % 0 to 0.0020
0 to 0.040
Oxygen (O), % 0 to 0.0030
0 to 0.2
Silicon (Si), % 0 to 0.010
0
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0.4 to 0.55
82.8 to 87.8
Zirconium (Zr), % 0.060 to 0.12
0
Residuals, % 0
0 to 0.4