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4343 Aluminum vs. 8090 Aluminum

Both 4343 aluminum and 8090 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is 4343 aluminum and the bottom bar is 8090 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
67
Elongation at Break, % 4.4
3.5 to 13
Fatigue Strength, MPa 45
91 to 140
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
25
Tensile Strength: Ultimate (UTS), MPa 110
340 to 490
Tensile Strength: Yield (Proof), MPa 62
210 to 420

Thermal Properties

Latent Heat of Fusion, J/g 510
400
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 620
660
Melting Onset (Solidus), °C 580
600
Specific Heat Capacity, J/kg-K 900
960
Thermal Conductivity, W/m-K 180
95 to 160
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
20
Electrical Conductivity: Equal Weight (Specific), % IACS 150
66

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
18
Density, g/cm3 2.6
2.7
Embodied Carbon, kg CO2/kg material 7.9
8.6
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1100
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1
16 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 27
340 to 1330
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
50
Strength to Weight: Axial, points 12
34 to 49
Strength to Weight: Bending, points 20
39 to 50
Thermal Diffusivity, mm2/s 77
36 to 60
Thermal Shock Resistance, points 5.2
15 to 22

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
93 to 98.4
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.25
1.0 to 1.6
Iron (Fe), % 0 to 0.8
0 to 0.3
Lithium (Li), % 0
2.2 to 2.7
Magnesium (Mg), % 0
0.6 to 1.3
Manganese (Mn), % 0 to 0.1
0 to 0.1
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
Zirconium (Zr), % 0
0.040 to 0.16
Residuals, % 0
0 to 0.15