3003 Pure Aluminum Coil

3003 aluminum coil is the most widely used aluminum alloy. It is made up of aluminum, copper, iron, manganese, silicon and zinc. It is commonly used because it has great resistance to corrosion and is moderately strong. The 3003 aluminum coil is 20% stronger than 1100 grade alloys because it is fused with manganese.

Specification

Because it’s not heat treatable, it has to be strengthened using cold working alone.
The most common applications for the 3003 aluminum coil are for fuel tanks, sheet metal work and other types of projects that need a metal that is stronger than the 1100 series aluminum. In some cases, it is used for cooking utensils, refrigerator panels, gas lines, storage tanks, garage doors, builder’s hardware and awning slats.

The machinability of the 3003 Aluminum is considered good for being an aluminum alloy. It is readily machined for the different applications. It can either be formed using conventional hot working or cold working. It’s also possible to use conventional welding methods to shape 3003 aluminum. It is sometimes welded to other aluminum alloys, like 6061, 5052 and 6062, which should have an AL 4043 filler rod.

AL 3003 isn’t heat treatable, but it can be forged with heat that’s between 500 and 950 degrees Fahrenheit. When using heat in this range, the aluminum can be hot worked easily. However, it is readily cold worked, which can be done using conventional methods. When annealing the alloy during or after using cold working techniques, it should be performed at 775 degrees Fahrenheit. This will give it enough time to thoroughly heat before being air cooled. The only way to make this alloy hard is with the use of cold working. It can also be deep drawn, spun or brazed.

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