The 6061 aluminum round bar is a metal that has been alloyed with silicon and magnesium. It is a widely used product because it has a high resistance to corrosion. It can be used in marine environments and can be used for heavy duty structures that need great weight-to-strength ratio. The applications you’ll find 6061 aluminum being used for include worm gears, machine parts, fixtures, electrical fittings, appliance fittings, marine fittings and truck components. Many different industries make use of this product.
This grade of aluminum can be easily welded and machined. When in the annealed state, it can be cold worked with no problem, allowing standard methods to be used for drilling, cutting, deep drawing, stamping, tapping and bending this alloy. Other methods of formability include heat working. In order to make this metal harder, precipitation hardening can be used, which should be done at 320 degrees F for a period of 18 hours, then air cooled. It should then undergo another eight hours at 350 degrees F, then air cooled. The annealing of this metal should last between two and three hours and should be performed at a temperature of 775 degrees F. This should then be followed by controlled cooling, where the temperature drops by 50 degrees F each hour until it reaches 500 degrees F. Air cooling should follow.
Aging precipitation heat treatment is another method that can be used on 6061 aluminum alloys. The recommended temperature for this is 350 degrees F continuously for eight hours, then air cooling. This will give the metal the T6 temper.
The 6061 aluminum round bar is available in sizes between .25 and 24.5 inches thick and up to 144 inches long.