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CC381H Copper-nickel vs. Type 4 Niobium

CC381H copper-nickel belongs to the copper alloys classification, while Type 4 niobium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
120
Elastic (Young's, Tensile) Modulus, GPa 140
110
Elongation at Break, % 20
23
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 52
38
Tensile Strength: Ultimate (UTS), MPa 380
220
Tensile Strength: Yield (Proof), MPa 140
140

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Specific Heat Capacity, J/kg-K 410
270
Thermal Conductivity, W/m-K 30
42
Thermal Expansion, µm/m-K 16
7.3

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
44
Resilience: Unit (Modulus of Resilience), kJ/m3 68
93
Stiffness to Weight: Axial, points 8.6
6.8
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12
7.2
Strength to Weight: Bending, points 13
9.5
Thermal Diffusivity, mm2/s 8.4
18
Thermal Shock Resistance, points 13
21

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0 to 0.010
Copper (Cu), % 64.5 to 69.9
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0.5 to 1.5
0 to 0.010
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0
Molybdenum (Mo), % 0
0 to 0.050
Nickel (Ni), % 29 to 31
0 to 0.0050
Niobium (Nb), % 0
98.1 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0 to 0.010
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.5
0
Zirconium (Zr), % 0
0.8 to 1.2