Aluminum coil for roofing,

The 3003 series aluminum coil is used more by 3003 brands of magnesium aluminum alloy, 3003 Aluminum Plate is easy to process, good rust prevention, can be painted on the surface of the original aluminum, the service life is better than steel. The 3003 is cheaper than the 5052 and has good weldability. Some truck oil tank material factories use 3003H24 aluminum plate instead of 5052 to make the partition that does not need pressure in the oil tank, reducing the cost does not affect the use.

An aluminum alloy with a silicon content between 8% and 12% is a transition zone that can be used either with common hard alloys or with diamond cutters. But the use of hard alloy should be PVD(physical coating) method, no aluminum, film thickness of the smaller tool.