The 6063 aluminum flat bar is a widely used product within commercial and architectural industries. This metal is quite versatile, allowing it to be welded, formed using heat and anodized. Anodizing this alloy can be done to match its color with other metals it is being conjoined with or used in applications with, such as 3003 and 5052 alloys. Anodizing will also help to improve its corrosion resistance. Some of the reasons why this metal is widely used include its great strength, affordability, high resistance to corrosion, weldability, formability, extrudability and surface appearance. It is attractive, which is why it’s commonly used in architectural applications like trimming and molds. It is also sometimes used for doors, windows and furniture.
It’s common for this product to be in the T6 or T4 condition. In these states, the machinability rate of 6063 aluminums is between 50 and 80 percent of 2011 at 100 percent. In the T6 condition, the fatigue strength is 10,000 psi, shear strength is 22,000 psi, machinability is 50%, bearing yield strength is 40,000 psi, ultimate bearing strength is 62,900 psi, shear modulus is 3,740 ksi, modulus elasticity is 10,000 ksi, tensile yield strength is 31,000 psi and ultimate tensile strength is 35,000 psi. When in its natural state, this metal has a tensile strength at 27,000, yield strength at 21,000 and shear strength as 17,000.
Different methods of heat treatment can be used to form this grade of aluminum. Possible methods that can be used include annealing, aging precipitation heat treatment and solution heat treatment. For solution heat treating, the temperature has to be set at 970 degrees F. Annealing can be done at 775 degrees F and aging precipitation should be done at 350 degrees F.