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C17300 Copper vs. Type 3 Niobium

C17300 copper belongs to the copper alloys classification, while Type 3 niobium 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 C17300 copper and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 3.0 to 23
23
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 45
38
Tensile Strength: Ultimate (UTS), MPa 500 to 1380
220
Tensile Strength: Yield (Proof), MPa 160 to 1200
140

Thermal Properties

Latent Heat of Fusion, J/g 230
310
Specific Heat Capacity, J/kg-K 380
270
Thermal Conductivity, W/m-K 110
42
Thermal Expansion, µm/m-K 17
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.6
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 88
44
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 5410
93
Stiffness to Weight: Axial, points 7.6
6.8
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 16 to 44
7.2
Strength to Weight: Bending, points 16 to 31
9.5
Thermal Diffusivity, mm2/s 32
18
Thermal Shock Resistance, points 17 to 48
21

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Beryllium (Be), % 1.8 to 2.0
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 95.5 to 97.8
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.4
0 to 0.0050
Lead (Pb), % 0.2 to 0.6
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 0.2 to 0.6
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 to 0.2
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
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.5
0