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2095 Aluminum vs. 8021 Aluminum

Both 2095 aluminum and 8021 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 2095 aluminum and the bottom bar is 8021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 8.5
2.3
Fatigue Strength, MPa 200
61
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Tensile Strength: Ultimate (UTS), MPa 700
160
Tensile Strength: Yield (Proof), MPa 610
130

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 210
170
Melting Completion (Liquidus), °C 660
650
Melting Onset (Solidus), °C 540
640
Specific Heat Capacity, J/kg-K 910
900
Thermal Conductivity, W/m-K 130
220
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
56
Electrical Conductivity: Equal Weight (Specific), % IACS 110
180

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.0
Density, g/cm3 3.0
2.8
Embodied Carbon, kg CO2/kg material 8.6
8.1
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 1470
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
49
Strength to Weight: Axial, points 65
16
Strength to Weight: Bending, points 59
23
Thermal Diffusivity, mm2/s 49
88
Thermal Shock Resistance, points 31
7.0

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
98 to 98.8
Copper (Cu), % 3.9 to 4.6
0 to 0.050
Iron (Fe), % 0 to 0.15
1.2 to 1.7
Lithium (Li), % 0.7 to 1.5
0
Magnesium (Mg), % 0.25 to 0.8
0
Manganese (Mn), % 0 to 0.25
0
Silicon (Si), % 0 to 0.12
0 to 0.15
Silver (Ag), % 0.25 to 0.6
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.18
0
Residuals, % 0
0 to 0.15