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6063-T4 Aluminum vs. 6063A-T4 Aluminum

Both 6063-T4 aluminum and 6063A-T4 aluminum are aluminum alloys. Both are furnished in the T4 temper. 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-T4 aluminum and the bottom bar is 6063A-T4 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 17
15
Fatigue Strength, MPa 65
53
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 110
100
Tensile Strength: Ultimate (UTS), MPa 160
160
Tensile Strength: Yield (Proof), MPa 82
100

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 200
200
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
49
Electrical Conductivity: Equal Weight (Specific), % IACS 160
160

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 23
21
Resilience: Unit (Modulus of Resilience), kJ/m3 49
76
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 81
83
Thermal Shock Resistance, points 7.2
7.3

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