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C19025 Copper vs. AWS ENiCu-7

C19025 copper belongs to the copper alloys classification, while AWS ENiCu-7 belongs to the nickel alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C19025 copper and the bottom bar is AWS ENiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
160
Elongation at Break, % 8.0 to 17
34
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
62
Tensile Strength: Ultimate (UTS), MPa 480 to 620
550

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Melting Completion (Liquidus), °C 1080
1270
Melting Onset (Solidus), °C 1020
1230
Specific Heat Capacity, J/kg-K 380
430
Thermal Conductivity, W/m-K 160
21
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 40
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
50
Density, g/cm3 8.9
8.7
Embodied Carbon, kg CO2/kg material 2.8
8.0
Embodied Energy, MJ/kg 44
110
Embodied Water, L/kg 320
250

Common Calculations

Stiffness to Weight: Axial, points 7.2
10
Stiffness to Weight: Bending, points 18
21
Strength to Weight: Axial, points 15 to 19
17
Strength to Weight: Bending, points 15 to 18
17
Thermal Diffusivity, mm2/s 47
5.5
Thermal Shock Resistance, points 17 to 22
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.75
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 97.1 to 98.5
20.6 to 38
Iron (Fe), % 0
0 to 2.5
Manganese (Mn), % 0
0 to 4.0
Nickel (Ni), % 0.8 to 1.2
62 to 69
Phosphorus (P), % 0.030 to 0.070
0 to 0.020
Silicon (Si), % 0
0 to 1.5
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0.7 to 1.1
0
Titanium (Ti), % 0
0 to 1.0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.5