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6061 aluminum6061 is an aluminum alloy, with magnesium and silicon as the alloying elements. It has generally good mechanical properties and is heat treatable and weldable. It is commonly produced in several heat temper grades, 6061-O, 6061-T4, 6061-T6, 6061-T651, 6061-T42. Additional recommended knowledge
Basic properties6061 has a density of 2.70 g/cm³ (0.0975 lb/in³). Chemical compositionThe alloy composition of 6061 is:
Mechanical propertiesThe mechanical properties of 6061 depend greatly on the temper, or heat treatment, of the material. [1] 6061-0Annealed 6061 (6061-0 temper) has maximum tensile strength no more than 18,000 psi (125 MPa), and maximum yield strength no more than 8,000 psi (55 MPa). The material has elongation (stretch before ultimate failure) of 25-30 %. 6061-T4T4 temper 6061 has an ultimate tensile strength of at least 30,000 psi (207 MPa) and yield strength of at least 16,000 psi (110 MPa). It has elongation of 16%. 6061-T6T6 temper 6061 has an ultimate tensile strength of at least 42,000 psi (290 MPa) and yield strength of at least 35,000 psi (241 MPa). In thicknesses of 0.250 inch (6.35 mm) or less, it has elongation of 8% or more; in thicker sections, it has elongation of 10%. T651 temper has similar mechanical properties. The famous Pioneer plaque was made of this particular alloy. Uses6061 is widely used for construction of aircraft structures, such as wings and fuselages, more commonly in homebuilt aircraft than commercial or military aircraft. [2] 6061 is used for yacht construction, including small utility boats. [3] 6061 is commonly used in the construction of Bicycle Frames and components. The Cycling industry also uses 7005 and 7075 aluminium alloys. Welding6061 is highly weldable, using tungsten inert gas welding. Typically, after welding, the properties near the weld are those of 6061-0, a loss of strength of around 80%. The material can be re-heat-treated to restore -T4 or -T6 temper for the whole piece. Extrusions6061 is also an alloy used in the production of extrusions—long constant–cross-section structural shapes produced by pushing metal through a shaped die. See alsoReferences |
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "6061_aluminum". A list of authors is available in Wikipedia. |