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6063-T62 Aluminum vs. 7075-T62 Aluminum

Both 6063-T62 aluminum and 7075-T62 aluminum are aluminum alloys. Both are furnished in the T62 temper. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 6063-T62 aluminum and the bottom bar is 7075-T62 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 9.1
7.2
Fatigue Strength, MPa 82
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 150
330
Tensile Strength: Ultimate (UTS), MPa 250
560
Tensile Strength: Yield (Proof), MPa 210
460

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 620
480
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 200
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 53
33
Electrical Conductivity: Equal Weight (Specific), % IACS 180
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Calomel Potential, mV -740
-750
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1190
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
38
Resilience: Unit (Modulus of Resilience), kJ/m3 320
1490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
46
Strength to Weight: Axial, points 26
51
Strength to Weight: Bending, points 33
50
Thermal Diffusivity, mm2/s 82
50
Thermal Shock Resistance, points 11
24

Alloy Composition

Aluminum (Al), % 97.5 to 99.4
86.9 to 91.4
Chromium (Cr), % 0 to 0.1
0.18 to 0.28
Copper (Cu), % 0 to 0.1
1.2 to 2.0
Iron (Fe), % 0 to 0.35
0 to 0.5
Magnesium (Mg), % 0.45 to 0.9
2.1 to 2.9
Manganese (Mn), % 0 to 0.1
0 to 0.3
Silicon (Si), % 0.2 to 0.6
0 to 0.4
Titanium (Ti), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.1
5.1 to 6.1
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15