There are many types of aluminum profiles. According to the alloy grades and the proportion of metal components, 4040 industrial aluminum profiles belong to the 40 series of 6063 alloy grades, and 4040 industrial aluminum profiles also have different cross-sections. Meicheng Aluminum has European and national standards. Two kinds of 4040 industrial aluminum profiles are also divided into light and heavy. It is really a bit complicated to divide them carefully.
Except for the commonly used door and window aluminum profiles such as 60 series, 70 series, 80 series, 90 series, curtain wall series, and other architectural aluminum profiles, there is no clear model distinction for industrial aluminum profiles, but it has a section difference, such as 4040AA in the 40 series. In this aluminum profile, its four corner slots are square, the corners are at right angles, which belongs to the national standard, and the weight is 0.87kg/m, while the four corners of the 4040B aluminum profile are arc-shaped, and there is also a card slot. The inner hook is more firm when holding items, and it looks more beautiful. The weight is 1.80kg/m. These two types of profiles are lightweight profiles and are mainly used on lightweight frame structures or other wire bodies with less load-bearing capacity.