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6151 Aluminum vs. 6066 Aluminum

Both 6151 aluminum and 6066 aluminum are aluminum alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is 6151 aluminum and the bottom bar is 6066 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 1.1 to 5.7
7.8 to 17
Fatigue Strength, MPa 80 to 100
94 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 190 to 200
95 to 240
Tensile Strength: Ultimate (UTS), MPa 330 to 340
160 to 400
Tensile Strength: Yield (Proof), MPa 270 to 280
93 to 360

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 590
560
Specific Heat Capacity, J/kg-K 900
890
Thermal Conductivity, W/m-K 170
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
40
Electrical Conductivity: Equal Weight (Specific), % IACS 150
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 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 18
23 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 580
61 to 920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
49
Strength to Weight: Axial, points 34
16 to 39
Strength to Weight: Bending, points 39
23 to 43
Thermal Diffusivity, mm2/s 70
61
Thermal Shock Resistance, points 15
6.9 to 17

Alloy Composition

Aluminum (Al), % 95.6 to 98.8
93 to 97
Chromium (Cr), % 0.15 to 0.35
0 to 0.4
Copper (Cu), % 0 to 0.35
0.7 to 1.2
Iron (Fe), % 0 to 1.0
0 to 0.5
Magnesium (Mg), % 0.45 to 0.8
0.8 to 1.4
Manganese (Mn), % 0 to 0.2
0.6 to 1.1
Silicon (Si), % 0.6 to 1.2
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