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R05400 Tantalum vs. C38500 Bronze

R05400 tantalum belongs to the otherwise unclassified metals classification, while C38500 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 C38500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 1.1 to 28
17
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 69
37
Tensile Strength: Ultimate (UTS), MPa 210 to 540
370
Tensile Strength: Yield (Proof), MPa 140 to 390
130

Thermal Properties

Latent Heat of Fusion, J/g 140
160
Specific Heat Capacity, J/kg-K 140
380
Thermal Conductivity, W/m-K 59
120
Thermal Expansion, µm/m-K 6.5
21

Otherwise Unclassified Properties

Density, g/cm3 17
8.1
Embodied Water, L/kg 650
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
48
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
78
Stiffness to Weight: Axial, points 6.2
7.0
Stiffness to Weight: Bending, points 11
19
Strength to Weight: Axial, points 3.6 to 9.0
13
Strength to Weight: Bending, points 4.8 to 8.8
14
Thermal Diffusivity, mm2/s 25
40
Thermal Shock Resistance, points 13 to 32
12

Alloy Composition

Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
55 to 59
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 0.35
Lead (Pb), % 0
2.5 to 3.5
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
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
36.7 to 42.5
Residuals, % 0
0 to 0.5