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5051A Aluminum vs. 5088 Aluminum

Both 5051A aluminum and 5088 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is 5051A aluminum and the bottom bar is 5088 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 18 to 21
29
Fatigue Strength, MPa 51 to 61
180
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
25
Shear Strength, MPa 110
200
Tensile Strength: Ultimate (UTS), MPa 170
310
Tensile Strength: Yield (Proof), MPa 56
150

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 610
540
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
29
Electrical Conductivity: Equal Weight (Specific), % IACS 130
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.5
9.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1190
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 27
76
Resilience: Unit (Modulus of Resilience), kJ/m3 23
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 17 to 18
32
Strength to Weight: Bending, points 25
38
Thermal Diffusivity, mm2/s 63
51
Thermal Shock Resistance, points 7.6
14

Alloy Composition

Aluminum (Al), % 96.1 to 98.6
92.4 to 94.8
Chromium (Cr), % 0 to 0.3
0 to 0.15
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 0 to 0.45
0.1 to 0.35
Magnesium (Mg), % 1.4 to 2.1
4.7 to 5.5
Manganese (Mn), % 0 to 0.25
0.2 to 0.5
Silicon (Si), % 0 to 0.3
0 to 0.2
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0.2 to 0.4
Zirconium (Zr), % 0
0 to 0.15
Residuals, % 0
0 to 0.15