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7010 Aluminum vs. 2618A Aluminum

Both 7010 aluminum and 2618A aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 7010 aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
72
Elongation at Break, % 3.9 to 6.8
4.5
Fatigue Strength, MPa 160 to 190
120
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 300 to 340
260
Tensile Strength: Ultimate (UTS), MPa 520 to 590
440
Tensile Strength: Yield (Proof), MPa 410 to 540
410

Thermal Properties

Latent Heat of Fusion, J/g 380
390
Maximum Temperature: Mechanical, °C 200
230
Melting Completion (Liquidus), °C 630
670
Melting Onset (Solidus), °C 480
560
Specific Heat Capacity, J/kg-K 860
880
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
37
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 3.0
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1120
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
19
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
1180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
47
Strength to Weight: Axial, points 47 to 54
41
Strength to Weight: Bending, points 47 to 52
44
Thermal Diffusivity, mm2/s 58
59
Thermal Shock Resistance, points 22 to 26
19

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
91.5 to 95.2
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 1.5 to 2.0
1.8 to 2.7
Iron (Fe), % 0 to 0.15
0.9 to 1.4
Magnesium (Mg), % 2.1 to 2.6
1.2 to 1.8
Manganese (Mn), % 0 to 0.1
0 to 0.25
Nickel (Ni), % 0 to 0.050
0.8 to 1.4
Silicon (Si), % 0 to 0.12
0.15 to 0.25
Titanium (Ti), % 0 to 0.060
0 to 0.2
Zinc (Zn), % 5.7 to 6.7
0 to 0.15
Zirconium (Zr), % 0.1 to 0.16
0 to 0.25
Residuals, % 0
0 to 0.15