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6061 Aluminum vs. 6063 Aluminum

Both 6061 aluminum and 6063 aluminum are aluminum alloys. They have a very high 99% of their average alloy composition in common. There are 31 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 6061 aluminum and the bottom bar is 6063 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 3.4 to 20
7.3 to 21
Fatigue Strength, MPa 58 to 110
39 to 95
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 84 to 210
70 to 190
Tensile Strength: Ultimate (UTS), MPa 130 to 410
110 to 300
Tensile Strength: Yield (Proof), MPa 76 to 370
49 to 270

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 580
620
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 170
190 to 220
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
49 to 58
Electrical Conductivity: Equal Weight (Specific), % IACS 140
160 to 190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Calomel Potential, mV -740
-740
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.8 to 81
13 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 42 to 1000
18 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 13 to 42
11 to 31
Strength to Weight: Bending, points 21 to 45
18 to 37
Thermal Diffusivity, mm2/s 68
79 to 89
Thermal Shock Resistance, points 5.7 to 18
4.8 to 13

Alloy Composition

Aluminum (Al), % 95.9 to 98.6
97.5 to 99.4
Chromium (Cr), % 0.040 to 0.35
0 to 0.1
Copper (Cu), % 0.15 to 0.4
0 to 0.1
Iron (Fe), % 0 to 0.7
0 to 0.35
Magnesium (Mg), % 0.8 to 1.2
0.45 to 0.9
Manganese (Mn), % 0 to 0.15
0 to 0.1
Silicon (Si), % 0.4 to 0.8
0.2 to 0.6
Titanium (Ti), % 0 to 0.15
0 to 0.1
Zinc (Zn), % 0 to 0.25
0 to 0.1
Residuals, % 0 to 0.15
0 to 0.15

Comparable Variants