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Grade 365 Molybdenum vs. R05200 Tantalum

Both grade 365 molybdenum and R05200 tantalum 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 grade 365 molybdenum and the bottom bar is R05200 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.010
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.010
0 to 0.010
Molybdenum (Mo), % 99.9 to 100
0 to 0.020
Nickel (Ni), % 0 to 0.0020
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.0020
0 to 0.010
Oxygen (O), % 0 to 0.0015
0 to 0.015
Silicon (Si), % 0 to 0.010
0 to 0.0050
Tantalum (Ta), % 0
99.8 to 100
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050