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R05400 Tantalum vs. C96700 Copper

R05400 tantalum belongs to the otherwise unclassified metals classification, while C96700 copper belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is R05400 tantalum and the bottom bar is C96700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 1.1 to 28
10
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 69
53
Tensile Strength: Ultimate (UTS), MPa 210 to 540
1210
Tensile Strength: Yield (Proof), MPa 140 to 390
550

Thermal Properties

Latent Heat of Fusion, J/g 140
250
Specific Heat Capacity, J/kg-K 140
400
Thermal Conductivity, W/m-K 59
30
Thermal Expansion, µm/m-K 6.5
15

Otherwise Unclassified Properties

Density, g/cm3 17
8.8
Embodied Water, L/kg 650
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
99
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
1080
Stiffness to Weight: Axial, points 6.2
8.9
Stiffness to Weight: Bending, points 11
20
Strength to Weight: Axial, points 3.6 to 9.0
38
Strength to Weight: Bending, points 4.8 to 8.8
29
Thermal Diffusivity, mm2/s 25
8.5
Thermal Shock Resistance, points 13 to 32
40

Alloy Composition

Beryllium (Be), % 0
1.1 to 1.2
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
62.4 to 68.8
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0.4 to 1.0
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 0
0.4 to 1.0
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
29 to 33
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 to 0.15
Tantalum (Ta), % 99.7 to 100
0
Titanium (Ti), % 0 to 0.010
0.15 to 0.35
Tungsten (W), % 0 to 0.050
0
Zirconium (Zr), % 0
0.15 to 0.35
Residuals, % 0
0 to 0.5