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R05400 Tantalum vs. Grade 365 Molybdenum

Both R05400 tantalum and grade 365 molybdenum are otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R05400 tantalum and the bottom bar is grade 365 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
310
Elongation at Break, % 1.1 to 28
6.3
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 69
120
Tensile Strength: Ultimate (UTS), MPa 210 to 540
620
Tensile Strength: Yield (Proof), MPa 140 to 390
530

Thermal Properties

Latent Heat of Fusion, J/g 140
370
Specific Heat Capacity, J/kg-K 140
250
Thermal Expansion, µm/m-K 6.5
7.0

Otherwise Unclassified Properties

Density, g/cm3 17
10
Embodied Water, L/kg 650
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
37
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
450
Stiffness to Weight: Axial, points 6.2
17
Stiffness to Weight: Bending, points 11
22
Strength to Weight: Axial, points 3.6 to 9.0
17
Strength to Weight: Bending, points 4.8 to 8.8
16
Thermal Shock Resistance, points 13 to 32
21

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.010
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 0.010
Molybdenum (Mo), % 0 to 0.020
99.9 to 100
Nickel (Ni), % 0 to 0.010
0 to 0.0020
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.010
0 to 0.0020
Oxygen (O), % 0 to 0.030
0 to 0.0015
Silicon (Si), % 0 to 0.0050
0 to 0.010
Tantalum (Ta), % 99.7 to 100
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0