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R05400 Tantalum vs. CC381H Copper-nickel

R05400 tantalum belongs to the otherwise unclassified metals classification, while CC381H copper-nickel belongs to the copper alloys. 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 R05400 tantalum and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 1.1 to 28
20
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 69
52
Tensile Strength: Ultimate (UTS), MPa 210 to 540
380
Tensile Strength: Yield (Proof), MPa 140 to 390
140

Thermal Properties

Latent Heat of Fusion, J/g 140
240
Specific Heat Capacity, J/kg-K 140
410
Thermal Conductivity, W/m-K 59
30
Thermal Expansion, µm/m-K 6.5
16

Otherwise Unclassified Properties

Density, g/cm3 17
8.9
Embodied Water, L/kg 650
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
60
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
68
Stiffness to Weight: Axial, points 6.2
8.6
Stiffness to Weight: Bending, points 11
19
Strength to Weight: Axial, points 3.6 to 9.0
12
Strength to Weight: Bending, points 4.8 to 8.8
13
Thermal Diffusivity, mm2/s 25
8.4
Thermal Shock Resistance, points 13 to 32
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0 to 0.010
0 to 0.030
Copper (Cu), % 0
64.5 to 69.9
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0
0.6 to 1.2
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
29 to 31
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.030
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Tantalum (Ta), % 99.7 to 100
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.5