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C70700 Copper-nickel vs. Grade CX2MW Nickel

C70700 copper-nickel belongs to the copper alloys classification, while grade CX2MW 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 CX2MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 39
34
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
84
Tensile Strength: Ultimate (UTS), MPa 320
620
Tensile Strength: Yield (Proof), MPa 110
350

Thermal Properties

Latent Heat of Fusion, J/g 220
330
Maximum Temperature: Mechanical, °C 220
980
Melting Completion (Liquidus), °C 1120
1550
Melting Onset (Solidus), °C 1060
1490
Specific Heat Capacity, J/kg-K 390
430
Thermal Conductivity, W/m-K 59
10
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 34
65
Density, g/cm3 8.9
8.9
Embodied Carbon, kg CO2/kg material 3.4
12
Embodied Energy, MJ/kg 52
170
Embodied Water, L/kg 300
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
180
Resilience: Unit (Modulus of Resilience), kJ/m3 51
290
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 10
19
Strength to Weight: Bending, points 12
18
Thermal Diffusivity, mm2/s 17
2.7
Thermal Shock Resistance, points 12
17

Alloy Composition

Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
20 to 22.5
Copper (Cu), % 88.5 to 90.5
0
Iron (Fe), % 0 to 0.050
2.0 to 6.0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
12.5 to 14.5
Nickel (Ni), % 9.5 to 10.5
51.3 to 63
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35
Residuals, % 0 to 0.5
0