55% Al-Zn alloy coated steel
55 Al-Zn alloy coated steel (GL)
Commonly known as galvanized steel, trade named Galvalume, plating alloy composition of 55% Al-43.4% Zn-1.6% Si. 55% Al-Zn alloy coated steel sheet with a more ordinary pure zinc galvanized steel sheet more excellent resistance to air, water and soil media corrosion. In the atmosphere, 55% Al-Zn alloy coated steel corrosion resistance is 2-6 times that of ordinary pure zinc galvanized steel sheet, while also exhibiting electrochemical protection better than the aluminum plate shearing edges. In addition, 55% Al-Zn alloy coated steel also has better resistance to high temperature oxidation resistance, better heat radiation and heat reflective, its surface spangle fine, shiny and beautiful, it is used in construction and electrical industries.