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CC381H Copper-nickel vs. R05400 Tantalum

CC381H copper-nickel 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 CC381H copper-nickel and the bottom bar is R05400 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0 to 0.010
Copper (Cu), % 64.5 to 69.9
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0.5 to 1.5
0 to 0.010
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 29 to 31
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 to 0.010
0
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0 to 0.010
0
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 0.5
0