A792 55% AL GL Galvalume Welded Square Round Steel Pipe/Tube
The corrosion resistance of "galvalume steel pipes" is mainly due to the protective function of aluminum. When the zinc is worn, the aluminum forms a layer of dense alumina that prevents the corrosion-resistant material from further corroding the interior. There is a test was carried out under the premise of hot-dip galvalume steel sheets and galvanized steel sheets of the same thickness, plating layer and surface treatment method. Aluminized zinc has excellent corrosion resistance than hot-dip galvanizing, and its service life is 2-6 times that of ordinary galvanized steel.
