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CC140C Copper vs. CC381H Copper-nickel

Both CC140C copper and CC381H copper-nickel are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 67% of their average alloy composition in common.

For each property being compared, the top bar is CC140C copper and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
91
Elastic (Young's, Tensile) Modulus, GPa 120
140
Elongation at Break, % 11
20
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
52
Tensile Strength: Ultimate (UTS), MPa 340
380
Tensile Strength: Yield (Proof), MPa 230
140

Thermal Properties

Latent Heat of Fusion, J/g 210
240
Maximum Temperature: Mechanical, °C 200
260
Melting Completion (Liquidus), °C 1100
1180
Melting Onset (Solidus), °C 1040
1120
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 310
30
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 77
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 78
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 31
40
Density, g/cm3 8.9
8.9
Embodied Carbon, kg CO2/kg material 2.6
5.0
Embodied Energy, MJ/kg 41
73
Embodied Water, L/kg 310
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
60
Resilience: Unit (Modulus of Resilience), kJ/m3 220
68
Stiffness to Weight: Axial, points 7.3
8.6
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 10
12
Strength to Weight: Bending, points 12
13
Thermal Diffusivity, mm2/s 89
8.4
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.4 to 1.2
0
Copper (Cu), % 98.8 to 99.6
64.5 to 69.9
Iron (Fe), % 0
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0
0.6 to 1.2
Nickel (Ni), % 0
29 to 31
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0
0 to 0.5