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4343 Aluminum vs. 5082 Aluminum

Both 4343 aluminum and 5082 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 4343 aluminum and the bottom bar is 5082 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
67
Elongation at Break, % 4.4
1.1
Fatigue Strength, MPa 45
110 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
25
Shear Strength, MPa 64
210 to 230
Tensile Strength: Ultimate (UTS), MPa 110
380 to 400
Tensile Strength: Yield (Proof), MPa 62
300 to 340

Thermal Properties

Latent Heat of Fusion, J/g 510
400
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 580
560
Specific Heat Capacity, J/kg-K 900
910
Thermal Conductivity, W/m-K 180
130
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
32
Electrical Conductivity: Equal Weight (Specific), % IACS 150
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.6
2.7
Embodied Carbon, kg CO2/kg material 7.9
8.9
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1100
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1
4.0 to 4.3
Resilience: Unit (Modulus of Resilience), kJ/m3 27
670 to 870
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
51
Strength to Weight: Axial, points 12
39 to 41
Strength to Weight: Bending, points 20
43 to 45
Thermal Diffusivity, mm2/s 77
54
Thermal Shock Resistance, points 5.2
17 to 18

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
93.5 to 96
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0 to 0.25
0 to 0.15
Iron (Fe), % 0 to 0.8
0 to 0.35
Magnesium (Mg), % 0
4.0 to 5.0
Manganese (Mn), % 0 to 0.1
0 to 0.15
Silicon (Si), % 6.8 to 8.2
0 to 0.2
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.25
Residuals, % 0
0 to 0.15