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C14520 Copper vs. R05400 Tantalum

C14520 copper belongs to the copper alloys classification, while R05400 tantalum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C14520 copper and the bottom bar is R05400 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 9.0 to 9.6
1.1 to 28
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
69
Tensile Strength: Ultimate (UTS), MPa 290 to 330
210 to 540
Tensile Strength: Yield (Proof), MPa 230 to 250
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 210
140
Specific Heat Capacity, J/kg-K 390
140
Thermal Conductivity, W/m-K 320
59
Thermal Expansion, µm/m-K 17
6.5

Otherwise Unclassified Properties

Density, g/cm3 8.9
17
Embodied Water, L/kg 310
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
50 to 420
Stiffness to Weight: Axial, points 7.2
6.2
Stiffness to Weight: Bending, points 18
11
Strength to Weight: Axial, points 9.0 to 10
3.6 to 9.0
Strength to Weight: Bending, points 11 to 12
4.8 to 8.8
Thermal Diffusivity, mm2/s 94
25
Thermal Shock Resistance, points 10 to 12
13 to 32

Alloy Composition

Carbon (C), % 0
0 to 0.010
Copper (Cu), % 99.2 to 99.596
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0
0 to 0.010
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.030
Phosphorus (P), % 0.0040 to 0.020
0
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
99.7 to 100
Tellurium (Te), % 0.4 to 0.7
0
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050