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6063A Aluminum vs. 1235 Aluminum

Both 6063A aluminum and 1235 aluminum are aluminum alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is 6063A aluminum and the bottom bar is 1235 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 6.7 to 18
28 to 34
Fatigue Strength, MPa 53 to 80
23 to 58
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 78 to 150
52 to 56
Tensile Strength: Ultimate (UTS), MPa 130 to 260
80 to 84
Tensile Strength: Yield (Proof), MPa 55 to 200
23 to 57

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 620
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 200
230
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49 to 54
60
Electrical Conductivity: Equal Weight (Specific), % IACS 160 to 180
200

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
160
Embodied Water, L/kg 1190
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 21
17 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 22 to 280
3.8 to 24
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 13 to 26
8.2 to 8.6
Strength to Weight: Bending, points 21 to 33
15 to 16
Thermal Diffusivity, mm2/s 83
93
Thermal Shock Resistance, points 5.6 to 11
3.6 to 3.7

Alloy Composition

Aluminum (Al), % 97.5 to 99
99.35 to 100
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0.15 to 0.35
0 to 0.65
Magnesium (Mg), % 0.6 to 0.9
0 to 0.050
Manganese (Mn), % 0 to 0.15
0 to 0.050
Silicon (Si), % 0.3 to 0.6
0 to 0.65
Titanium (Ti), % 0 to 0.1
0 to 0.060
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.15
0 to 0.1
Residuals, % 0 to 0.15
0