Product Characteristics

POSCO Cr-Free steel is POSCOs environment friendly Galvanized steel that does not include chromium 6+ or any other compound of chromium, known as harmful element to human body.

Product	Coating Layer Structure	Characteristics	Appearance
GI (Galvanized Steel)		While molten zinc solidifies on the surface of the steel sheet, normal zinc crystallisation is suppressed, creating fine crystals. The surface is flat and has a fine appearance after painting. Paintability is superior to regular products.
GA (Galvannealed Steel)		By a thermal diffusion process, stell sheet and zinc react to produce an alloy layer. The weldability and paintability are superior to galvanized steel sheets. Fe in the alloy enhances corrosion resistance after coating.

Post Treatment