Aluminum-magnesium-manganese alloys can form aluminum oxide films with the atmosphere

Aluminum-magnesium-manganese alloy plate roof/curtain wall system mainly uses 3000 series aluminum-manganese (aluminum-manganese-magnesium) alloy. The elongation, hardness, tensile strength, yield strength and other indicators of 3000 series aluminum-manganese alloy are very suitable for roof curling, Processing of rolling equipment. Therefore, it is widely used in building outer protection projects such as roof/wall system, and cooperates with various painting systems and painting processes to make the appearance of the building colorful, and also increases the corrosion resistance of the aluminum alloy itself. The thickness of the aluminum material selected for the aluminum-magnesium-manganese alloy plate is lower than 0.7mm. When the thickness of the aluminum material is 1mm, its weight is 2.7 kg/square meter, and when the thickness is 0.7mm, the weight of the aluminum material is 1.89 kg/square meter. . The length of the coil is not limited.

The aluminum-magnesium-manganese alloy can form an aluminum oxide film with the atmosphere to prevent further corrosion. It is generally used in civil buildings with a coating quality guarantee of 15-20 years. The design life of the building is more than 50 years. Generally, a 25-year product warranty period is guaranteed; the color steel plate is easily corroded and rusted under the erosion of humid air, rain and snow water, causing fracture accidents, especially in the parts of rivets and seams. The aluminum-magnesium-manganese alloy has magnesium and manganese content, so it has certain strength and stiffness. However, the internal stress, hardening and strength of the aluminum alloy sheet have no obvious yield point, which is not as good as the color steel; the strength and stiffness of the color steel plate are better, and it is not easy to deform.