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C70700 Copper-nickel vs. Grade CW6MC Nickel

C70700 copper-nickel belongs to the copper alloys classification, while grade CW6MC 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 CW6MC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 39
28
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
79
Tensile Strength: Ultimate (UTS), MPa 320
540
Tensile Strength: Yield (Proof), MPa 110
310

Thermal Properties

Latent Heat of Fusion, J/g 220
330
Maximum Temperature: Mechanical, °C 220
980
Melting Completion (Liquidus), °C 1120
1480
Melting Onset (Solidus), °C 1060
1430
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 59
11
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 34
80
Density, g/cm3 8.9
8.6
Embodied Carbon, kg CO2/kg material 3.4
14
Embodied Energy, MJ/kg 52
200
Embodied Water, L/kg 300
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
130
Resilience: Unit (Modulus of Resilience), kJ/m3 51
240
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
17
Thermal Diffusivity, mm2/s 17
2.8
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
20 to 23
Copper (Cu), % 88.5 to 90.5
0
Iron (Fe), % 0 to 0.050
0 to 5.0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 9.5 to 10.5
55.4 to 68.9
Niobium (Nb), % 0
3.2 to 4.5
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0