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6061 Aluminum vs. 7005 Aluminum

Both 6061 aluminum and 7005 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is 6061 aluminum and the bottom bar is 7005 aluminum.

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 3.4 to 20
10 to 20
Fatigue Strength, MPa 58 to 110
100 to 190
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 84 to 210
120 to 230
Tensile Strength: Ultimate (UTS), MPa 130 to 410
200 to 400
Tensile Strength: Yield (Proof), MPa 76 to 370
95 to 350

Thermal Properties

Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 580
610
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 170
140 to 170
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
35 to 43
Electrical Conductivity: Equal Weight (Specific), % IACS 140
110 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.7
Calomel Potential, mV -740
-850
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.8 to 81
32 to 57
Resilience: Unit (Modulus of Resilience), kJ/m3 42 to 1000
65 to 850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 13 to 42
19 to 38
Strength to Weight: Bending, points 21 to 45
26 to 41
Thermal Diffusivity, m2/s 68
54 to 65
Thermal Shock Resistance, points 5.7 to 18
8.7 to 18

Alloy Composition

Aluminum (Al), % 95.9 to 98.6
91 to 94.7
Chromium (Cr), % 0.040 to 0.35
0.060 to 0.2
Copper (Cu), % 0.15 to 0.4
0 to 0.1
Iron (Fe), % 0 to 0.7
0 to 0.4
Magnesium (Mg), % 0.8 to 1.2
1.0 to 1.8
Manganese (Mn), % 0 to 0.15
0.2 to 0.7
Silicon (Si), % 0.4 to 0.8
0 to 0.35
Titanium (Ti), % 0 to 0.15
0.010 to 0.060
Zinc (Zn), % 0 to 0.25
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0 to 0.15
0 to 0.15

Comparable Variants