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1235 Aluminum vs. 6063A Aluminum

Both 1235 aluminum and 6063A 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 1235 aluminum and the bottom bar is 6063A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
49 to 54
Electrical Conductivity: Equal Weight (Specific), % IACS 200
160 to 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 160
150
Embodied Water, L/kg 1190
1190

Common Calculations

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

Alloy Composition

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