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Type 4 Niobium vs. C18100 Copper

Type 4 niobium belongs to the otherwise unclassified metals classification, while C18100 copper belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is Type 4 niobium and the bottom bar is C18100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 23
8.3
Poisson's Ratio 0.4
0.34
Shear Modulus, GPa 38
47
Tensile Strength: Ultimate (UTS), MPa 220
510
Tensile Strength: Yield (Proof), MPa 140
460

Thermal Properties

Latent Heat of Fusion, J/g 310
210
Specific Heat Capacity, J/kg-K 270
390
Thermal Conductivity, W/m-K 42
320
Thermal Expansion, µm/m-K 7.3
17

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.9
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
40
Resilience: Unit (Modulus of Resilience), kJ/m3 93
900
Stiffness to Weight: Axial, points 6.8
7.3
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.2
16
Strength to Weight: Bending, points 9.5
16
Thermal Diffusivity, mm2/s 18
94
Thermal Shock Resistance, points 21
18

Alloy Composition

Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 0
98.7 to 99.49
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0
Magnesium (Mg), % 0
0.030 to 0.060
Molybdenum (Mo), % 0 to 0.050
0
Nickel (Ni), % 0 to 0.0050
0
Niobium (Nb), % 98.1 to 99.2
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.025
0
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0 to 0.050
0
Zirconium (Zr), % 0.8 to 1.2
0.080 to 0.2
Residuals, % 0
0 to 0.5