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Type 4 Niobium vs. C19800 Copper

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 310
210
Specific Heat Capacity, J/kg-K 270
390
Thermal Conductivity, W/m-K 42
260
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 44
49 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 93
770 to 1320
Stiffness to Weight: Axial, points 6.8
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.2
14 to 17
Strength to Weight: Bending, points 9.5
14 to 17
Thermal Diffusivity, mm2/s 18
75
Thermal Shock Resistance, points 21
15 to 20

Alloy Composition

Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
95.7 to 99.47
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0.020 to 0.5
Magnesium (Mg), % 0
0.1 to 1.0
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
Phosphorus (P), % 0
0.010 to 0.1
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 0 to 0.5
0
Tin (Sn), % 0
0.1 to 1.0
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
0.3 to 1.5
Zirconium (Zr), % 0.8 to 1.2
0
Residuals, % 0
0 to 0.2