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5026 Aluminum vs. 7108 Aluminum

Both 5026 aluminum and 7108 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 5026 aluminum and the bottom bar is 7108 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 5.1 to 11
11
Fatigue Strength, MPa 94 to 140
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 150 to 180
210
Tensile Strength: Ultimate (UTS), MPa 260 to 320
350
Tensile Strength: Yield (Proof), MPa 120 to 250
290

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 210
210
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 510
530
Specific Heat Capacity, J/kg-K 890
880
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
39
Electrical Conductivity: Equal Weight (Specific), % IACS 99
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.8
2.9
Embodied Carbon, kg CO2/kg material 8.9
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 29
38
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 440
620
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
47
Strength to Weight: Axial, points 26 to 32
34
Strength to Weight: Bending, points 33 to 37
38
Thermal Diffusivity, mm2/s 52
59
Thermal Shock Resistance, points 11 to 14
16

Alloy Composition

Aluminum (Al), % 88.2 to 94.7
92.4 to 94.7
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0.1 to 0.8
0 to 0.050
Iron (Fe), % 0.2 to 1.0
0 to 0.1
Magnesium (Mg), % 3.9 to 4.9
0.7 to 1.4
Manganese (Mn), % 0.6 to 1.8
0 to 0.050
Silicon (Si), % 0.55 to 1.4
0 to 0.1
Titanium (Ti), % 0 to 0.2
0 to 0.050
Zinc (Zn), % 0 to 1.0
4.5 to 5.5
Zirconium (Zr), % 0 to 0.3
0.12 to 0.25
Residuals, % 0
0 to 0.15