Aluminum 6061-O
Subcategory: 6000 Series Aluminum Alloy; Aluminum Alloy; Metal; Nonferrous Metal
Close Analogs:
Composition Notes:
Aluminum content reported is calculated as remainder.
Composition information provided by the Aluminum Association and is not for design.
Key Words: al6061, UNS A96061; ISO AlMg1SiCu; Aluminium 6061-O, AD-33 (Russia); AA6061-O
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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.
Physical Properties
| 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. |
| Specific 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 |