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2095 Aluminum vs. 7108 Aluminum

Both 2095 aluminum and 7108 aluminum are aluminum alloys. They have a moderately high 94% 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 2095 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, % 8.5
11
Fatigue Strength, MPa 200
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 410
210
Tensile Strength: Ultimate (UTS), MPa 700
350
Tensile Strength: Yield (Proof), MPa 610
290

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 210
210
Melting Completion (Liquidus), °C 660
630
Melting Onset (Solidus), °C 540
530
Specific Heat Capacity, J/kg-K 910
880
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
39
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 3.0
2.9
Embodied Carbon, kg CO2/kg material 8.6
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 1470
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
38
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
620
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
47
Strength to Weight: Axial, points 65
34
Strength to Weight: Bending, points 59
38
Thermal Diffusivity, mm2/s 49
59
Thermal Shock Resistance, points 31
16

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
92.4 to 94.7
Copper (Cu), % 3.9 to 4.6
0 to 0.050
Iron (Fe), % 0 to 0.15
0 to 0.1
Lithium (Li), % 0.7 to 1.5
0
Magnesium (Mg), % 0.25 to 0.8
0.7 to 1.4
Manganese (Mn), % 0 to 0.25
0 to 0.050
Silicon (Si), % 0 to 0.12
0 to 0.1
Silver (Ag), % 0.25 to 0.6
0
Titanium (Ti), % 0 to 0.1
0 to 0.050
Zinc (Zn), % 0 to 0.25
4.5 to 5.5
Zirconium (Zr), % 0.040 to 0.18
0.12 to 0.25
Residuals, % 0
0 to 0.15