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6063-O Aluminum vs. 6063A-O Aluminum

Both 6063-O aluminum and 6063A-O aluminum are aluminum alloys. Both are furnished in the annealed condition. Their average alloy composition is basically identical. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 21
18
Fatigue Strength, MPa 55
58
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 70
78
Tensile Strength: Ultimate (UTS), MPa 110
130
Tensile Strength: Yield (Proof), MPa 49
55

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 620
620
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 220
200
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58
53
Electrical Conductivity: Equal Weight (Specific), % IACS 190
180

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1190
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
18
Resilience: Unit (Modulus of Resilience), kJ/m3 18
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 11
13
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 89
83
Thermal Shock Resistance, points 4.8
5.6

Alloy Composition

Aluminum (Al), % 97.5 to 99.4
97.5 to 99
Chromium (Cr), % 0 to 0.1
0 to 0.050
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.35
0.15 to 0.35
Magnesium (Mg), % 0.45 to 0.9
0.6 to 0.9
Manganese (Mn), % 0 to 0.1
0 to 0.15
Silicon (Si), % 0.2 to 0.6
0.3 to 0.6
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.1
0 to 0.15
Residuals, % 0
0 to 0.15