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C71500 Copper-nickel vs. Type 3 Niobium

C71500 copper-nickel belongs to the copper alloys classification, while Type 3 niobium belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
100
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 52
38
Tensile Strength: Ultimate (UTS), MPa 380 to 620
220

Thermal Properties

Latent Heat of Fusion, J/g 230
310
Specific Heat Capacity, J/kg-K 400
270
Thermal Conductivity, W/m-K 28
42
Thermal Expansion, µm/m-K 16
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.6
Embodied Water, L/kg 280
160

Common Calculations

Stiffness to Weight: Axial, points 8.6
6.8
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12 to 19
7.2
Strength to Weight: Bending, points 13 to 18
9.5
Thermal Diffusivity, mm2/s 7.7
18
Thermal Shock Resistance, points 12 to 20
21

Alloy Composition

Carbon (C), % 0
0 to 0.010
Copper (Cu), % 63.5 to 70.6
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0.4 to 1.0
0 to 0.0050
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 29 to 33
0 to 0.0050
Niobium (Nb), % 0
98.6 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zinc (Zn), % 0 to 1.0
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.5
0