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Aluminium 6061


Standard ALUMINIUM 6061-O
UNS  A 96061

Mechanical & Physical Properties

Density 2.7 g/cc
Melting Point 582 °C - 652 °C
Tensile Strength Psi-18000
Yield Strength (0.2%Offset) Psi-8000
Elongation 25

Chemical Composition

  Aluminum 6061
Al 95.8-98.6
Cr 0.04-0.35
Cu 0.15-0.4
Fe Max 0.7
Mg 0.8-1.2
Mn Max 0.15
Zn Max 0.25
Si 0.4-0.8
Ti Max 0.15
Other, each Max 0.05
Other, total Max 0.15

Material Notes:

Aluminum composition calculated as remainder. Information provided by Alcoa and the references. General 6061 characteristics and uses: Excellent joining characteristics, good acceptance of applied coatings. Combines relatively high strength, good workability, and high resistance to corrosion; widely available. The T8 and T9 tempers offer better chipping characteristics over the T6 temper.

Uses: Aircraft fittings, camera lens mounts, couplings, marines fittings and hardware, electrical fittings and connectors, decorative or misc. hardware, hinge pins, magneto parts, brake pistons, hydraulic pistons, appliance fittings, valves and valve parts.Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN.

Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN.

Physical Properties Metric English Comments
Density 2.7 g/cc 0.0975 lb/in3  AA; Typical

Mechanical Properties
Hardness, Brinell 30 30  AA; Typical; 500 g load; 10 mm ball
Ultimate Tensile Strength 124 MPa 18000 psi  AA; Typical
Tensile Yield Strength 55.2 MPa 8000 psi  AA; Typical
Elongation at Break 25 % 25 %  AA; Typical; 1/16 in. (1.6 mm) Thickness
Elongation at Break 30 % 30 %  AA; Typical; 1/2 in. (12.7 mm) Diameter
Modulus of Elasticity 68.9 GPa 10000 ksi  AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Ultimate Bearing Strength 228 MPa 33100 psi  Edge distance/pin diameter = 2.0
Bearing Yield Strength 103 MPa 14900 psi  Edge distance/pin diameter = 2.0
Poisson's Ratio 0.33 0.33  Estimated from trends in similar Al alloys.
Fatigue Strength 62.1 MPa 9000 psi  AA; 500,000,000 cycles completely reversed stress; RR Moore machine/specimen
Machinability 30 % 30 %  0-100 Scale of Aluminum Alloys
Shear Modulus 26 GPa 3770 ksi  Estimated from similar Al alloys.
Shear Strength 82.7 MPa 12000 psi  AA; Typical

Electrical Properties
Electrical Resistivity 3.66e-006 ohm-cm 3.66e-006 ohm-cm  AA; Typical at 68°F

Thermal Properties
CTE, linear 68°F 23.6 µm/m-°C 13.1 µin/in-°F  AA; Typical; Average over 68-212°F range.
CTE, linear 250°C 25.2 µm/m-°C 14 µin/in-°F  Estimated from trends in similar Al alloys. 20-300°C.
Heat Capacity 0.896 J/g-°C 0.214 BTU/lb-°F  
Thermal Conductivity 180 W/m-K 1250 BTU-in/hr-ft2-°F  AA; Typical at 77°F
Melting Point 582 - 652 °C 1080 - 1205 °F  AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater; Eutectic melting can be completely eliminated by homogenization.
Solidus 582 °C 1080 °F  AA; Typical
Liquidus 652 °C 1205 °F  AA; Typical

Processing Properties
Solution Temperature 529 °C 985 °F  
Aging Temperature 160 °C 320 °F  Rolled or drawn products; hold at temperature for 18 hr
Aging Temperature 177 °C 350 °F  Extrusions or forgings; hold at temperature for 8 hr

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