Galvanized iron (GI) sheets are steel sheets which are basically coated with zinc and include a range of hot dip galvanized and electro-galvanized steel sheets. Zinc weathers at a very slow rate, so the coating generally has a long life.
GL(Galvalume Steel) are galvanized steel sheets with both zinc and aluminum, and is the ideal combination of anti-corrosion and alkali-resistance of zinc, and the durability, heat-resistance, and acid-resistance of aluminum.
The Difference Between Galvanized Steel And Galvalume Steel
1. Resistance to atmospheric corrosion: GL(galvalume) steel sheet is excellent, while GI(galvanized) steel sheet is good.
2. High temperature oxidation resistance:GL sheet is excellent, and GI is good.
3. Processing performance: GL sheet behaves well, and GI behaves well.
4. Weldability: GL sheet behaves poorly, while GI behaves better.
5. Coating property: GL sheet behaves better, and GI behaves better.
6. Incision protection: GL sheet behaves poorly, while GI behaves better.
7. Cathodic protection: GL sheet is poor, while GI is strong.
