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Grade 27 Titanium vs. Grade 364 Molybdenum

Grade 27 titanium belongs to the titanium alloys classification, while grade 364 molybdenum belongs to the otherwise unclassified metals. 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 27 titanium and the bottom bar is grade 364 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
310
Elongation at Break, % 27
6.2 to 11
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 41
120
Tensile Strength: Ultimate (UTS), MPa 270
580 to 720
Tensile Strength: Yield (Proof), MPa 230
350 to 620

Thermal Properties

Latent Heat of Fusion, J/g 420
370
Specific Heat Capacity, J/kg-K 540
250
Thermal Expansion, µm/m-K 8.7
7.0

Otherwise Unclassified Properties

Density, g/cm3 4.5
10
Embodied Carbon, kg CO2/kg material 33
28
Embodied Energy, MJ/kg 530
330
Embodied Water, L/kg 320
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
43 to 57
Resilience: Unit (Modulus of Resilience), kJ/m3 240
200 to 630
Stiffness to Weight: Axial, points 13
17
Stiffness to Weight: Bending, points 35
22
Strength to Weight: Axial, points 17
16 to 20
Strength to Weight: Bending, points 21
15 to 17
Thermal Shock Resistance, points 21
19 to 24

Alloy Composition

Carbon (C), % 0 to 0.080
0.010 to 0.040
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.010
Molybdenum (Mo), % 0
99.2 to 99.5
Nickel (Ni), % 0
0 to 0.0050
Nitrogen (N), % 0 to 0.030
0 to 0.0020
Oxygen (O), % 0 to 0.18
0 to 0.030
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.0050
Titanium (Ti), % 99 to 99.92
0.4 to 0.55
Zirconium (Zr), % 0
0.060 to 0.12
Residuals, % 0 to 0.4
0