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R05400 Tantalum vs. C12900 Copper

R05400 tantalum belongs to the otherwise unclassified metals classification, while C12900 copper belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R05400 tantalum and the bottom bar is C12900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 1.1 to 28
2.8 to 50
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 69
43
Tensile Strength: Ultimate (UTS), MPa 210 to 540
220 to 420
Tensile Strength: Yield (Proof), MPa 140 to 390
75 to 380

Thermal Properties

Latent Heat of Fusion, J/g 140
210
Specific Heat Capacity, J/kg-K 140
390
Thermal Conductivity, W/m-K 59
380
Thermal Expansion, µm/m-K 6.5
17

Otherwise Unclassified Properties

Density, g/cm3 17
9.0
Embodied Water, L/kg 650
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
11 to 88
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
24 to 640
Stiffness to Weight: Axial, points 6.2
7.2
Stiffness to Weight: Bending, points 11
18
Strength to Weight: Axial, points 3.6 to 9.0
6.8 to 13
Strength to Weight: Bending, points 4.8 to 8.8
9.1 to 14
Thermal Diffusivity, mm2/s 25
110
Thermal Shock Resistance, points 13 to 32
7.8 to 15

Alloy Composition

Antimony (Sb), % 0
0 to 0.0030
Arsenic (As), % 0
0 to 0.012
Bismuth (Bi), % 0
0 to 0.0030
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
99.88 to 100
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0
Lead (Pb), % 0
0 to 0.0040
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0 to 0.050
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
Silver (Ag), % 0
0 to 0.054
Tantalum (Ta), % 99.7 to 100
0
Tellurium (Te), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0