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C72200 Copper-nickel vs. R05400 Tantalum

C72200 copper-nickel belongs to the copper alloys classification, while R05400 tantalum belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is C72200 copper-nickel and the bottom bar is R05400 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
190
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 48
69
Tensile Strength: Ultimate (UTS), MPa 350 to 580
210 to 540

Thermal Properties

Latent Heat of Fusion, J/g 220
140
Specific Heat Capacity, J/kg-K 400
140
Thermal Conductivity, W/m-K 34
59
Thermal Expansion, µm/m-K 16
6.5

Otherwise Unclassified Properties

Density, g/cm3 8.9
17
Embodied Water, L/kg 300
650

Common Calculations

Stiffness to Weight: Axial, points 8.0
6.2
Stiffness to Weight: Bending, points 19
11
Strength to Weight: Axial, points 11 to 18
3.6 to 9.0
Strength to Weight: Bending, points 12 to 17
4.8 to 8.8
Thermal Diffusivity, mm2/s 9.6
25
Thermal Shock Resistance, points 12 to 20
13 to 32

Alloy Composition

Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0.3 to 0.7
0
Copper (Cu), % 78.1 to 84.2
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0.5 to 1.0
0 to 0.010
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 15 to 18
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
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
99.7 to 100
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.2
0