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Type 1 Niobium vs. C71640 Copper-nickel

Type 1 niobium belongs to the otherwise unclassified metals classification, while C71640 copper-nickel belongs to the copper alloys. There are 18 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 1 niobium and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
140
Poisson's Ratio 0.4
0.33
Shear Modulus, GPa 38
52
Tensile Strength: Ultimate (UTS), MPa 140
490 to 630
Tensile Strength: Yield (Proof), MPa 82
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Specific Heat Capacity, J/kg-K 270
410
Thermal Conductivity, W/m-K 52
29
Thermal Expansion, µm/m-K 7.3
15

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.9
Embodied Water, L/kg 160
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 32
130 to 750
Stiffness to Weight: Axial, points 6.8
8.7
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 4.6
15 to 20
Strength to Weight: Bending, points 7.1
16 to 18
Thermal Diffusivity, mm2/s 23
8.2
Thermal Shock Resistance, points 13
16 to 21

Alloy Composition

Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
61.7 to 67.8
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.0050
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
1.5 to 2.5
Molybdenum (Mo), % 0 to 0.010
0
Nickel (Ni), % 0 to 0.0050
29 to 32
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
Tantalum (Ta), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 1.0
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.5