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R05400 Tantalum vs. C82500 Copper

R05400 tantalum belongs to the otherwise unclassified metals classification, while C82500 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 C82500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 1.1 to 28
1.0 to 20
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 69
45
Tensile Strength: Ultimate (UTS), MPa 210 to 540
550 to 1100
Tensile Strength: Yield (Proof), MPa 140 to 390
310 to 980

Thermal Properties

Latent Heat of Fusion, J/g 140
240
Specific Heat Capacity, J/kg-K 140
390
Thermal Conductivity, W/m-K 59
130
Thermal Expansion, µm/m-K 6.5
17

Otherwise Unclassified Properties

Density, g/cm3 17
8.8
Embodied Water, L/kg 650
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
11 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
400 to 4000
Stiffness to Weight: Axial, points 6.2
7.7
Stiffness to Weight: Bending, points 11
19
Strength to Weight: Axial, points 3.6 to 9.0
18 to 35
Strength to Weight: Bending, points 4.8 to 8.8
17 to 27
Thermal Diffusivity, mm2/s 25
38
Thermal Shock Resistance, points 13 to 32
19 to 38

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Beryllium (Be), % 0
1.9 to 2.3
Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 0
0 to 0.1
Cobalt (Co), % 0
0.15 to 0.7
Copper (Cu), % 0
95.3 to 97.8
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 0.25
Lead (Pb), % 0
0 to 0.020
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0 to 0.2
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
0.2 to 0.35
Tantalum (Ta), % 99.7 to 100
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0 to 0.010
0 to 0.12
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5