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5082 Aluminum vs. 7050 Aluminum

Both 5082 aluminum and 7050 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is 5082 aluminum and the bottom bar is 7050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
70
Elongation at Break, % 1.1
2.2 to 12
Fatigue Strength, MPa 110 to 130
130 to 210
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
26
Shear Strength, MPa 210 to 230
280 to 330
Tensile Strength: Ultimate (UTS), MPa 380 to 400
490 to 570
Tensile Strength: Yield (Proof), MPa 300 to 340
390 to 500

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 560
490
Specific Heat Capacity, J/kg-K 910
860
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
35
Electrical Conductivity: Equal Weight (Specific), % IACS 110
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.9
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 4.3
10 to 55
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 870
1110 to 1760
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
45
Strength to Weight: Axial, points 39 to 41
45 to 51
Strength to Weight: Bending, points 43 to 45
45 to 50
Thermal Diffusivity, mm2/s 54
54
Thermal Shock Resistance, points 17 to 18
21 to 25

Alloy Composition

Aluminum (Al), % 93.5 to 96
87.3 to 92.1
Chromium (Cr), % 0 to 0.15
0 to 0.040
Copper (Cu), % 0 to 0.15
2.0 to 2.6
Iron (Fe), % 0 to 0.35
0 to 0.15
Magnesium (Mg), % 4.0 to 5.0
1.9 to 2.6
Manganese (Mn), % 0 to 0.15
0 to 0.1
Silicon (Si), % 0 to 0.2
0 to 0.12
Titanium (Ti), % 0 to 0.1
0 to 0.060
Zinc (Zn), % 0 to 0.25
5.7 to 6.7
Zirconium (Zr), % 0
0.080 to 0.15
Residuals, % 0
0 to 0.15