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C19800 Copper vs. Type 4 Niobium

C19800 copper belongs to the copper alloys classification, while Type 4 niobium belongs to the otherwise unclassified metals. 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 C19800 copper and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 9.0 to 12
23
Poisson's Ratio 0.34
0.4
Shear Modulus, GPa 43
38
Tensile Strength: Ultimate (UTS), MPa 430 to 550
220
Tensile Strength: Yield (Proof), MPa 420 to 550
140

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Specific Heat Capacity, J/kg-K 390
270
Thermal Conductivity, W/m-K 260
42
Thermal Expansion, µm/m-K 18
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.6
Embodied Water, L/kg 320
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 52
44
Resilience: Unit (Modulus of Resilience), kJ/m3 770 to 1320
93
Stiffness to Weight: Axial, points 7.2
6.8
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 14 to 17
7.2
Strength to Weight: Bending, points 14 to 17
9.5
Thermal Diffusivity, mm2/s 75
18
Thermal Shock Resistance, points 15 to 20
21

Alloy Composition

Carbon (C), % 0
0 to 0.010
Copper (Cu), % 95.7 to 99.47
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0.020 to 0.5
0 to 0.010
Magnesium (Mg), % 0.1 to 1.0
0
Molybdenum (Mo), % 0
0 to 0.050
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 0
98.1 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0.010 to 0.1
0
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.5
Tin (Sn), % 0.1 to 1.0
0
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 0.3 to 1.5
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.2
0