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5042 Aluminum vs. 5082 Aluminum

Both 5042 aluminum and 5082 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 5042 aluminum and the bottom bar is 5082 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
67
Elongation at Break, % 1.1 to 3.4
1.1
Fatigue Strength, MPa 97 to 120
110 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
25
Shear Strength, MPa 200
210 to 230
Tensile Strength: Ultimate (UTS), MPa 340 to 360
380 to 400
Tensile Strength: Yield (Proof), MPa 270 to 310
300 to 340

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
560
Specific Heat Capacity, J/kg-K 900
910
Thermal Conductivity, W/m-K 130
130
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
32
Electrical Conductivity: Equal Weight (Specific), % IACS 110
110

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
8.9
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
4.0 to 4.3
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 720
670 to 870
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
51
Strength to Weight: Axial, points 35 to 37
39 to 41
Strength to Weight: Bending, points 40 to 42
43 to 45
Thermal Diffusivity, mm2/s 53
54
Thermal Shock Resistance, points 15 to 16
17 to 18

Alloy Composition

Aluminum (Al), % 94.2 to 96.8
93.5 to 96
Chromium (Cr), % 0 to 0.1
0 to 0.15
Copper (Cu), % 0 to 0.15
0 to 0.15
Iron (Fe), % 0 to 0.35
0 to 0.35
Magnesium (Mg), % 3.0 to 4.0
4.0 to 5.0
Manganese (Mn), % 0.2 to 0.5
0 to 0.15
Silicon (Si), % 0 to 0.2
0 to 0.2
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.25
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants