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EN AC-45400 Aluminum vs. C81400 Copper

EN AC-45400 aluminum belongs to the aluminum alloys classification, while C81400 copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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-45400 aluminum and the bottom bar is C81400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
120
Elongation at Break, % 6.7
11
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 260
370
Tensile Strength: Yield (Proof), MPa 130
250

Thermal Properties

Latent Heat of Fusion, J/g 470
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 630
1090
Melting Onset (Solidus), °C 560
1070
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 140
260
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
60
Electrical Conductivity: Equal Weight (Specific), % IACS 95
61

Otherwise Unclassified Properties

Base Metal Price, % relative 10
33
Density, g/cm3 2.8
8.9
Embodied Carbon, kg CO2/kg material 7.8
2.8
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1100
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
36
Resilience: Unit (Modulus of Resilience), kJ/m3 110
260
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 49
18
Strength to Weight: Axial, points 25
11
Strength to Weight: Bending, points 32
13
Thermal Diffusivity, mm2/s 54
75
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 88.4 to 92.9
0
Beryllium (Be), % 0
0.020 to 0.1
Chromium (Cr), % 0
0.6 to 1.0
Copper (Cu), % 2.6 to 3.6
98.4 to 99.38
Iron (Fe), % 0 to 0.6
0
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0 to 0.1
0
Silicon (Si), % 4.5 to 6.0
0
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.5