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R05400 Tantalum vs. C67000 Bronze

R05400 tantalum belongs to the otherwise unclassified metals classification, while C67000 bronze belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, 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 R05400 tantalum and the bottom bar is C67000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 1.1 to 28
5.6 to 11
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 69
42
Tensile Strength: Ultimate (UTS), MPa 210 to 540
660 to 880
Tensile Strength: Yield (Proof), MPa 140 to 390
350 to 540

Thermal Properties

Latent Heat of Fusion, J/g 140
190
Specific Heat Capacity, J/kg-K 140
410
Thermal Conductivity, W/m-K 59
99
Thermal Expansion, µm/m-K 6.5
20

Otherwise Unclassified Properties

Density, g/cm3 17
7.9
Embodied Water, L/kg 650
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
43 to 62
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
560 to 1290
Stiffness to Weight: Axial, points 6.2
7.8
Stiffness to Weight: Bending, points 11
20
Strength to Weight: Axial, points 3.6 to 9.0
23 to 31
Strength to Weight: Bending, points 4.8 to 8.8
21 to 26
Thermal Diffusivity, mm2/s 25
30
Thermal Shock Resistance, points 13 to 32
21 to 29

Alloy Composition

Aluminum (Al), % 0
3.0 to 6.0
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
63 to 68
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
2.0 to 4.0
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 0
2.5 to 5.0
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.030
0
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 99.7 to 100
0
Tin (Sn), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
21.8 to 32.5
Residuals, % 0
0 to 0.5