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CR020A Copper vs. C96400 Copper-nickel

Both CR020A copper and C96400 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 CR020A copper and the bottom bar is C96400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
140
Elongation at Break, % 15
25
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
51
Tensile Strength: Ultimate (UTS), MPa 220
490
Tensile Strength: Yield (Proof), MPa 130
260

Thermal Properties

Latent Heat of Fusion, J/g 210
240
Maximum Temperature: Mechanical, °C 200
260
Melting Completion (Liquidus), °C 1090
1240
Melting Onset (Solidus), °C 1040
1170
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 380
28
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
45
Density, g/cm3 9.0
8.9
Embodied Carbon, kg CO2/kg material 2.6
5.9
Embodied Energy, MJ/kg 41
87
Embodied Water, L/kg 320
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
100
Resilience: Unit (Modulus of Resilience), kJ/m3 76
250
Stiffness to Weight: Axial, points 7.2
8.6
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 6.8
15
Strength to Weight: Bending, points 9.0
16
Thermal Diffusivity, mm2/s 110
7.8
Thermal Shock Resistance, points 7.8
17

Alloy Composition


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Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 99.95 to 99.999
62.3 to 71.3
Iron (Fe), % 0
0.25 to 1.5
Lead (Pb), % 0 to 0.0050
0 to 0.010
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
28 to 32
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0.0010 to 0.0060
0 to 0.020
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 0 to 0.015
0
Sulfur (S), % 0
0 to 0.020
Residuals, % 0
0 to 0.5