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C72900 Copper-nickel vs. C18100 Copper

Both C72900 copper-nickel and C18100 copper are copper alloys. They have 76% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C72900 copper-nickel and the bottom bar is C18100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 6.0 to 20
8.3
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 45
47
Shear Strength, MPa 540 to 630
300
Tensile Strength: Ultimate (UTS), MPa 870 to 1080
510
Tensile Strength: Yield (Proof), MPa 700 to 920
460

Thermal Properties

Latent Heat of Fusion, J/g 210
210
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 1120
1080
Melting Onset (Solidus), °C 950
1020
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 29
320
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
80
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
81

Otherwise Unclassified Properties

Base Metal Price, % relative 39
31
Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 4.6
2.7
Embodied Energy, MJ/kg 72
43
Embodied Water, L/kg 360
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 210
40
Resilience: Unit (Modulus of Resilience), kJ/m3 2030 to 3490
900
Stiffness to Weight: Axial, points 7.6
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 27 to 34
16
Strength to Weight: Bending, points 23 to 27
16
Thermal Diffusivity, mm2/s 8.6
94
Thermal Shock Resistance, points 31 to 38
18

Alloy Composition


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Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 74.1 to 78
98.7 to 99.49
Iron (Fe), % 0 to 0.5
0
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0.030 to 0.060
Manganese (Mn), % 0 to 0.3
0
Nickel (Ni), % 14.5 to 15.5
0
Niobium (Nb), % 0 to 0.1
0
Tin (Sn), % 7.5 to 8.5
0
Zinc (Zn), % 0 to 0.5
0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0 to 0.3
0 to 0.5