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AWS ERNiCu-7 vs. CR024A Copper

AWS ERNiCu-7 belongs to the nickel alloys classification, while CR024A copper belongs to the copper alloys. They have a modest 27% 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 (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCu-7 and the bottom bar is CR024A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
120
Elongation at Break, % 34
15
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 61
43
Tensile Strength: Ultimate (UTS), MPa 550
230

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Melting Completion (Liquidus), °C 1280
1090
Melting Onset (Solidus), °C 1240
1040
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 20
370
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.2
100
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 50
31
Density, g/cm3 8.7
9.0
Embodied Carbon, kg CO2/kg material 8.5
2.6
Embodied Energy, MJ/kg 120
41
Embodied Water, L/kg 250
320

Common Calculations

Stiffness to Weight: Axial, points 10
7.2
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 18
7.1
Strength to Weight: Bending, points 17
9.3
Thermal Diffusivity, mm2/s 5.3
110
Thermal Shock Resistance, points 19
8.1

Alloy Composition

Aluminum (Al), % 0 to 1.3
0
Carbon (C), % 0 to 0.15
0
Copper (Cu), % 18.3 to 36.5
99.9 to 99.985
Iron (Fe), % 0 to 2.5
0
Manganese (Mn), % 0 to 4.0
0
Nickel (Ni), % 62 to 69
0
Phosphorus (P), % 0 to 0.030
0.015 to 0.040
Silicon (Si), % 0 to 1.3
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 1.5 to 3.0
0
Residuals, % 0 to 0.5
0