6061 (AlMg1SiCu, 3.3214, H20, A96061) Aluminum

6061 aluminum is an alloy of aluminum, further classified within the AA 6000 series (aluminum-magnesium-silicon wrought alloy). 6061 is the Aluminum Association (AA) designation for this material. In European standards, it will typically be given as EN AW-6061. AlMg1SiCu is the EN chemical designation. A96061 is the UNS number. And H20 is the British Standard (BS) designation.

It has 15 common variants, each represented as a separate material.

Material Properties

Base Metal Price16 % rel

Calomel Potential-740 mV

Density2.7 g/cm3 (170 lb/ft3)

Elastic (Young's, Tensile) Modulus69 GPa (10 x 106 psi)

Electrical Conductivity43 % IACS

Electrical Resistivity Order of Magnitude-7 10x Ω-m

Elongation at Break6.1 to 18 %

Melting Onset (Solidus)580 °C (1080 °F)

Poisson's Ratio0.33

Shear Modulus26 GPa (3.8 x 106 psi)

Specific Heat Capacity900 J/kg-K

Strength to Weight Ratio48 to 160 kN-m/kg

Tensile Strength: Ultimate (UTS)130 to 430 MPa (19 to 62 x 103 psi)

Tensile Strength: Yield (Proof)79 to 370 MPa (11 to 54 x 103 psi)

Thermal Conductivity170 W/m-K

Thermal Diffusivity70

Thermal Expansion23 µm/m-K

Alloy Composition

Aluminum (Al)95.9 to 98.6 %

Magnesium (Mg)0.8 to 1.2 %

Silicon (Si)0.4 to 0.8 %

Iron (Fe)0 to 0.7 %

Copper (Cu)0.15 to 0.4 %

Chromium (Cr)0.040 to 0.35 %

Zinc (Zn)0 to 0.25 %

Titanium (Ti)0 to 0.15 %

Manganese (Mn)0 to 0.15 %

Residuals0 to 0.15 %

Further Reading

Aluminum Standards and Data, Aluminum Association Inc., 2013

ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

ASTM B210: Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes

ASTM B211: Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire

ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

ASTM B247: Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings

ASTM B308: Standard Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles

ASTM B483: Standard Specification for Aluminum and Aluminum-Alloy Drawn Tube and Pipe for General Purpose Applications

ASTM B547: Standard Specification for Aluminum and Aluminum-Alloy Formed and Arc-Welded Round Tube

EN 485-2: Aluminium and aluminium alloys. Sheet, strip and plate. Mechanical properties

EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products

EN 754-2: Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties

EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties

ISO 6361: Wrought Aluminium and Aluminium Alloy Sheets, Strips and Plates

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