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5042 Aluminum vs. 6261 Aluminum

Both 5042 aluminum and 6261 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 6261 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 1.1 to 3.4
9.0 to 16
Fatigue Strength, MPa 97 to 120
60 to 120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 200
90 to 180
Tensile Strength: Ultimate (UTS), MPa 340 to 360
150 to 300
Tensile Strength: Yield (Proof), MPa 270 to 310
100 to 260

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 570
610
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
180
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
48
Electrical Conductivity: Equal Weight (Specific), % IACS 110
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 8.8
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6 to 12
21 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 720
77 to 500
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 35 to 37
15 to 31
Strength to Weight: Bending, points 40 to 42
23 to 37
Thermal Diffusivity, mm2/s 53
75
Thermal Shock Resistance, points 15 to 16
6.5 to 13

Alloy Composition

Aluminum (Al), % 94.2 to 96.8
96.6 to 98.6
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 0 to 0.15
0.15 to 0.4
Iron (Fe), % 0 to 0.35
0 to 0.4
Magnesium (Mg), % 3.0 to 4.0
0.7 to 1.0
Manganese (Mn), % 0.2 to 0.5
0.2 to 0.35
Silicon (Si), % 0 to 0.2
0.4 to 0.7
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.25
0 to 0.2
Residuals, % 0
0 to 0.15