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EN AC-71100 Aluminum vs. C72500 Copper-nickel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while C72500 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN AC-71100 aluminum and the bottom bar is C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
120
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 27
45
Tensile Strength: Ultimate (UTS), MPa 260
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 490
210
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 580
1130
Melting Onset (Solidus), °C 520
1060
Specific Heat Capacity, J/kg-K 860
390
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
11
Electrical Conductivity: Equal Weight (Specific), % IACS 97
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
35
Density, g/cm3 2.9
8.9
Embodied Carbon, kg CO2/kg material 7.4
3.6
Embodied Energy, MJ/kg 140
55
Embodied Water, L/kg 1010
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 25
13 to 24
Strength to Weight: Bending, points 31
14 to 21
Thermal Shock Resistance, points 12
14 to 27

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Copper (Cu), % 0 to 0.1
85.2 to 89.7
Iron (Fe), % 0 to 0.3
0 to 0.6
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0 to 0.2
Nickel (Ni), % 0
8.5 to 10.5
Silicon (Si), % 7.5 to 9.5
0
Tin (Sn), % 0
1.8 to 2.8
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0 to 0.5
Residuals, % 0
0 to 0.2