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AWS ENiCu-7 vs. C70620 Copper-nickel

AWS ENiCu-7 belongs to the nickel alloys classification, while C70620 copper-nickel belongs to the copper alloys. They have 41% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS ENiCu-7 and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
120
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 62
46
Tensile Strength: Ultimate (UTS), MPa 550
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
220
Melting Completion (Liquidus), °C 1270
1120
Melting Onset (Solidus), °C 1230
1060
Specific Heat Capacity, J/kg-K 430
390
Thermal Conductivity, W/m-K 21
49
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 50
33
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 8.0
3.4
Embodied Energy, MJ/kg 110
51
Embodied Water, L/kg 250
300

Common Calculations

Stiffness to Weight: Axial, points 10
7.7
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 17
9.3 to 18
Strength to Weight: Bending, points 17
11 to 17
Thermal Diffusivity, mm2/s 5.5
14
Thermal Shock Resistance, points 18
10 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.75
0
Carbon (C), % 0 to 0.1
0 to 0.050
Copper (Cu), % 20.6 to 38
86.5 to 90
Iron (Fe), % 0 to 2.5
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 4.0
0 to 1.0
Nickel (Ni), % 62 to 69
9.0 to 11
Phosphorus (P), % 0 to 0.020
0 to 0.2
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0 to 1.0
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5