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7020 Aluminum vs. C97600 Dairy Metal

7020 aluminum belongs to the aluminum alloys classification, while C97600 dairy metal 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 7020 aluminum and the bottom bar is C97600 dairy metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 8.4 to 14
11
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
46
Tensile Strength: Ultimate (UTS), MPa 190 to 390
310
Tensile Strength: Yield (Proof), MPa 120 to 310
140

Thermal Properties

Latent Heat of Fusion, J/g 380
210
Maximum Temperature: Mechanical, °C 210
210
Melting Completion (Liquidus), °C 650
1140
Melting Onset (Solidus), °C 610
1110
Specific Heat Capacity, J/kg-K 880
380
Thermal Conductivity, W/m-K 150
22
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.9
8.8
Embodied Carbon, kg CO2/kg material 8.3
4.6
Embodied Energy, MJ/kg 150
69
Embodied Water, L/kg 1150
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 46
29
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 690
85
Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 18 to 37
9.8
Strength to Weight: Bending, points 25 to 41
12
Thermal Diffusivity, mm2/s 59
6.5
Thermal Shock Resistance, points 8.3 to 17
11

Alloy Composition

Aluminum (Al), % 91.2 to 94.8
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Chromium (Cr), % 0.1 to 0.35
0
Copper (Cu), % 0 to 0.2
63 to 67
Iron (Fe), % 0 to 0.4
0 to 1.5
Lead (Pb), % 0
3.0 to 5.0
Magnesium (Mg), % 1.0 to 1.4
0
Manganese (Mn), % 0.050 to 0.5
0
Nickel (Ni), % 0
19 to 21.5
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.35
0 to 0.15
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
3.5 to 4.0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 4.0 to 5.0
3.0 to 9.0
Zirconium (Zr), % 0.080 to 0.25
0
Residuals, % 0
0 to 0.3