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EN AC-21100 Aluminum vs. C70620 Copper-nickel

EN AC-21100 aluminum belongs to the aluminum alloys classification, while C70620 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-21100 aluminum and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
120
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
46
Tensile Strength: Ultimate (UTS), MPa 340 to 350
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 390
220
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 670
1120
Melting Onset (Solidus), °C 550
1060
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 130
49
Thermal Expansion, µm/m-K 23
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
33
Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.0
3.4
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1150
300

Common Calculations

Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 31 to 33
9.3 to 18
Strength to Weight: Bending, points 36 to 37
11 to 17
Thermal Diffusivity, mm2/s 48
14
Thermal Shock Resistance, points 15
10 to 20

Alloy Composition


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Aluminum (Al), % 93.4 to 95.7
0
Carbon (C), % 0
0 to 0.050
Copper (Cu), % 4.2 to 5.2
86.5 to 90
Iron (Fe), % 0 to 0.19
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 0.55
0 to 1.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 0 to 0.18
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0 to 0.5
Residuals, % 0 to 0.1
0 to 0.5