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CC381H Copper-nickel vs. C55281 Copper

Both CC381H copper-nickel and C55281 copper 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. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is C55281 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 52
40
Tensile Strength: Ultimate (UTS), MPa 380
190

Thermal Properties

Latent Heat of Fusion, J/g 240
190
Maximum Temperature: Mechanical, °C 260
200
Melting Completion (Liquidus), °C 1180
810
Melting Onset (Solidus), °C 1120
640
Specific Heat Capacity, J/kg-K 410
400
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.7
Embodied Carbon, kg CO2/kg material 5.0
7.0
Embodied Energy, MJ/kg 73
110

Common Calculations

Stiffness to Weight: Axial, points 8.6
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12
6.1
Strength to Weight: Bending, points 13
8.5
Thermal Shock Resistance, points 13
7.7

Alloy Composition


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Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 64.5 to 69.9
88.5 to 89.4
Iron (Fe), % 0.5 to 1.5
0
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0
Nickel (Ni), % 29 to 31
0
Phosphorus (P), % 0 to 0.010
5.8 to 6.2
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
4.8 to 5.2
Sulfur (S), % 0 to 0.010
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0
0 to 0.15