Cost comparison between cold-rolled steel plates and galvanized steel plates of the same thickness (1.0mm) :
Cold-rolled steel plate: approximately 4.5-5.5 yuan per kilogram;
Hot-dip galvanized steel sheet (zinc coating 120g/m²) : approximately 6.5-7.5 yuan per kilogram (40% - 50% higher than cold-rolled steel);
Electro-galvanized steel sheet (zinc coating 20g/m²) : approximately 7.0-8.0 yuan per kilogram (50% - 60% higher than cold-rolled steel).
The cost difference mainly comes from the galvanizing process (the processing fee for hot-dip galvanizing is about 1.5-2.0 yuan per kilogram, and for electro-galvanizing, it is about 2.0-3.0 yuan per kilogram).
