“Alloy 61S,” which can be now referred to as 6061 aluminum, was only the second aluminum-magnesium-silicon alloy ever developed for industrial use. The first was 51S in 1921. Right after adding a little bit copper and chromium for strengthening and recrystalization control respectively, 6061 was introduced in 1935 to fill the want for medium-strength heat-treatable aluminum that was challenging but might be conveniently welded and joined or anodized.
Unlike tougher alloys of aluminum and copper, 6061 aluminum might be quickly extruded, rolled and forged, producing it a satisfactory substitute for mild steel products. It has a higher resistance to corrosion from environmental circumstances, producing it preferred for railroad applications and marine projects. It really is by far the most versatile and least highly-priced from the heat-treatable aluminum alloys and is employed exactly where look and moderate strength are necessary.
Tempering includes a big effect on heat-treatable alloys like 6061. Numerous alloys achieve strength from remedy heat-treating (or thermal treatment) and aging. 6061 aluminum is readily available in pre-tempered grades including 6061-O (annealed) and in tempered grades for instance 6061-T6 (resolution heat-treated then artificially aged), 6061-T4 (option heat-treated then naturally aged), and 6061-T651 (answer heat-treated, stress-relieved by stretching, then artificially aged).
1 on the most extensively employed aluminum alloys for common purpose use, 6061 aluminum is accessible within a wide variety of structural shapes and is favored by lots of for its solid mechanical capabilities and superior weldability. Immediately after welding, the solution may have significantly less strength than just before welding, however the material can be heat-treated and artificially aged once more to restore its strength. As an alternative to fusion welding, Sapa provides friction stir welding which offers a stronger weld with minimal deformation.
There are actually a wide assortment of applications for which 6061 aluminum is well-suited, like yacht building, railroad automobiles, truck bodies, automotive parts (for instance wheel spacers), aftermarket motorcycle parts, aluminum beverage cans, low-stress aircraft parts, tank fittings and screw machine components. Aluminum-magnesium-silicon alloys are also made use of in wide-span roof structures for arenas and for bridge decks. Bicycles benefit from the use of 6061 aluminum alloy because it is often effortlessly welded and is rigidly strong when in comparison to its all round weight.
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