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6023 Aluminum vs. 1235 Aluminum

Both 6023 aluminum and 1235 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is 6023 aluminum and the bottom bar is 1235 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 11
28 to 34
Fatigue Strength, MPa 120 to 130
23 to 58
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 210 to 220
52 to 56
Tensile Strength: Ultimate (UTS), MPa 360
80 to 84
Tensile Strength: Yield (Proof), MPa 300 to 310
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 580
640
Specific Heat Capacity, J/kg-K 890
900
Thermal Conductivity, W/m-K 170
230
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
60
Electrical Conductivity: Equal Weight (Specific), % IACS 140
200

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
17 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
3.8 to 24
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
50
Strength to Weight: Axial, points 35 to 36
8.2 to 8.6
Strength to Weight: Bending, points 40
15 to 16
Thermal Diffusivity, mm2/s 67
93
Thermal Shock Resistance, points 16
3.6 to 3.7

Alloy Composition


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Aluminum (Al), % 94 to 97.7
99.35 to 100
Bismuth (Bi), % 0.3 to 0.8
0
Copper (Cu), % 0.2 to 0.5
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.65
Magnesium (Mg), % 0.4 to 0.9
0 to 0.050
Manganese (Mn), % 0.2 to 0.6
0 to 0.050
Silicon (Si), % 0.6 to 1.4
0 to 0.65
Tin (Sn), % 0.6 to 1.2
0
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0 to 0.15
0