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C70700 Copper-nickel vs. Grade CY40 Nickel

C70700 copper-nickel belongs to the copper alloys classification, while grade CY40 nickel belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is grade CY40 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 39
34
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
74
Tensile Strength: Ultimate (UTS), MPa 320
540
Tensile Strength: Yield (Proof), MPa 110
220

Thermal Properties

Latent Heat of Fusion, J/g 220
330
Maximum Temperature: Mechanical, °C 220
960
Melting Completion (Liquidus), °C 1120
1350
Melting Onset (Solidus), °C 1060
1300
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 59
14
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 34
55
Density, g/cm3 8.9
8.4
Embodied Carbon, kg CO2/kg material 3.4
9.1
Embodied Energy, MJ/kg 52
130
Embodied Water, L/kg 300
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
150
Resilience: Unit (Modulus of Resilience), kJ/m3 51
130
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 10
18
Strength to Weight: Bending, points 12
18
Thermal Diffusivity, mm2/s 17
3.7
Thermal Shock Resistance, points 12
16

Alloy Composition

Carbon (C), % 0
0 to 0.4
Chromium (Cr), % 0
14 to 17
Copper (Cu), % 88.5 to 90.5
0
Iron (Fe), % 0 to 0.050
0 to 11
Manganese (Mn), % 0 to 0.5
0 to 1.5
Nickel (Ni), % 9.5 to 10.5
67 to 86
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 3.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0