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Type 1 Niobium vs. C17500 Copper

Type 1 niobium belongs to the otherwise unclassified metals classification, while C17500 copper belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is Type 1 niobium and the bottom bar is C17500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 29
6.0 to 30
Poisson's Ratio 0.4
0.34
Shear Modulus, GPa 38
45
Tensile Strength: Ultimate (UTS), MPa 140
310 to 860
Tensile Strength: Yield (Proof), MPa 82
170 to 760

Thermal Properties

Latent Heat of Fusion, J/g 320
220
Specific Heat Capacity, J/kg-K 270
390
Thermal Conductivity, W/m-K 52
200
Thermal Expansion, µm/m-K 7.3
18

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
30 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 32
120 to 2390
Stiffness to Weight: Axial, points 6.8
7.5
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 4.6
9.7 to 27
Strength to Weight: Bending, points 7.1
11 to 23
Thermal Diffusivity, mm2/s 23
59
Thermal Shock Resistance, points 13
11 to 29

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Beryllium (Be), % 0
0.4 to 0.7
Carbon (C), % 0 to 0.010
0
Cobalt (Co), % 0
2.4 to 2.7
Copper (Cu), % 0
95.6 to 97.2
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.0050
0 to 0.1
Molybdenum (Mo), % 0 to 0.010
0
Nickel (Ni), % 0 to 0.0050
0
Niobium (Nb), % 99.7 to 100
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.015
0
Silicon (Si), % 0 to 0.0050
0 to 0.2
Tantalum (Ta), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0 to 0.030
0
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.5