Comparative advantage of aluminum magnesium manganese plate.
toyota1515 > 03-06-2018, 07:20 AM
1. Durability comparison: aluminum magnesium and manganese alloy plate can form alumina film with the atmosphere to prevent further corrosion. It is generally used in civil buildings for 15 to 20 years of coating quality protection. The service life of building design is over 50 years. Generally guarantee the product warranty period of 25 years; The color steel plate is easy to corrode the rust-induced fracture caused by wet air, rain and snow water, especially the rivets and joints.
2. Weight comparison: aluminum magnesium manganese plate has a light weight (density of 2730kg/m3); The weight of color steel plate is heavier (the density is 7850kg/m3)
3. Comparison of strength and steel degree: magnesium and manganese in aluminum alloy aluminum alloy have certain strength and stiffness. However, there is no obvious yield point for the internal stress, hardening and strength of aluminum alloy sheet. The strength and rigidity of color steel plate are better. Not easy to deform, etc.
4. Appearance control: aluminum magnesium and manganese alloy can be divided into non-coating (hammer, embossing, pre-passivating alumina surface treatment) and painting class (PVDF, SMP, PE, etc.); Color steel plate can be divided into non-painting (hot aluminized zinc alloy steel belt: light plate) and painting class (PVDF, SMP, PE, HDP, etc.).
5. Lightning protection performance: the thickness of aluminum magnesium manganese alloy is generally 0.7mm and 0.9mm, which can be used directly as a lightning protection flash device (national standard << building lightning protection design specification >>GB50057) to avoid perforation in the roof; The color steel plate is generally 0.5mm thick aluminum zinc and galvanized steel plate, can not be used directly as the lightning protection flash, need to set up the lightning protector (such as lightning rod).
Vi. Safety fire: the melting point of aluminum magnesium manganese alloy is low (660 degrees Celsius). High temperature resistance performance, 150 degree above is rapid loss of strength. When a fire breaks out, the roof is easily burned, causing the fire to spread outwards, but not to the inside, which helps the fireman to extend the fire hose from the top. The melting point of color steel plate steel (1515 degree Celsius).
7. Molding: aluminum magnesium manganese alloy has good weldability, high plasticity, low temperature environment, aluminum alloy strength and ductility can be improved, with good low temperature performance; Color steel plate steel is easy to be cold and brittle at low temperature.
8. Cost performance: aluminum magnesium manganese plate alloy is of high cost performance: light, waterproof, easy to bend arc, stereo vision effect; The cost performance of color steel plate is low: quality heavy, waterproof slightly, steel strong curved arc slightly bad, artistic effect is not good.