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6070 Aluminum vs. 6066 Aluminum

Both 6070 aluminum and 6066 aluminum are aluminum alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is 6070 aluminum and the bottom bar is 6066 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 5.6 to 8.6
7.8 to 17
Fatigue Strength, MPa 95 to 130
94 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 220 to 240
95 to 240
Tensile Strength: Ultimate (UTS), MPa 370 to 380
160 to 400
Tensile Strength: Yield (Proof), MPa 350
93 to 360

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 570
560
Specific Heat Capacity, J/kg-K 900
890
Thermal Conductivity, W/m-K 160
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
40
Electrical Conductivity: Equal Weight (Specific), % IACS 140
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 32
23 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 900
61 to 920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
49
Strength to Weight: Axial, points 38
16 to 39
Strength to Weight: Bending, points 42 to 43
23 to 43
Thermal Diffusivity, mm2/s 65
61
Thermal Shock Resistance, points 16 to 17
6.9 to 17

Alloy Composition

Aluminum (Al), % 94.6 to 98
93 to 97
Chromium (Cr), % 0 to 0.1
0 to 0.4
Copper (Cu), % 0.15 to 0.4
0.7 to 1.2
Iron (Fe), % 0 to 0.5
0 to 0.5
Magnesium (Mg), % 0.5 to 1.2
0.8 to 1.4
Manganese (Mn), % 0.4 to 1.0
0.6 to 1.1
Silicon (Si), % 1.0 to 1.7
0.9 to 1.8
Titanium (Ti), % 0 to 0.15
0 to 0.2
Zinc (Zn), % 0 to 0.25
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants