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5042 Aluminum vs. 6065 Aluminum

Both 5042 aluminum and 6065 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 5042 aluminum and the bottom bar is 6065 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 1.1 to 3.4
4.5 to 11
Fatigue Strength, MPa 97 to 120
96 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 200
190 to 230
Tensile Strength: Ultimate (UTS), MPa 340 to 360
310 to 400
Tensile Strength: Yield (Proof), MPa 270 to 310
270 to 380

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 570
590
Specific Heat Capacity, J/kg-K 900
890
Thermal Conductivity, W/m-K 130
170
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
43
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.8
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6 to 12
17 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 720
540 to 1040
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
49
Strength to Weight: Axial, points 35 to 37
31 to 40
Strength to Weight: Bending, points 40 to 42
36 to 43
Thermal Diffusivity, mm2/s 53
67
Thermal Shock Resistance, points 15 to 16
14 to 18

Alloy Composition

Aluminum (Al), % 94.2 to 96.8
94.4 to 98.2
Bismuth (Bi), % 0
0.5 to 1.5
Chromium (Cr), % 0 to 0.1
0 to 0.15
Copper (Cu), % 0 to 0.15
0.15 to 0.4
Iron (Fe), % 0 to 0.35
0 to 0.7
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 3.0 to 4.0
0.8 to 1.2
Manganese (Mn), % 0.2 to 0.5
0 to 0.15
Silicon (Si), % 0 to 0.2
0.4 to 0.8
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.25
0 to 0.25
Zirconium (Zr), % 0
0 to 0.15
Residuals, % 0
0 to 0.15