Aluminum-Zinc Alloy Coated Steel(GL)

ARA Corp provide ALUMINUM-ZINC ALLOY COATED STEEL ideally combines characteristics of aluminum coated steel and galvanized steel. It consists of aluminum (55% in weight ratio), zinc (43.4% in weight), and silicon (1.6% in weight ratio) so it has both aluminum-unique corrosion-resistance and heat resistance and zinc-unique "galvanic behavior" Characteristics Durability - Humidity Test, Salt Spray Test, Outdoor Exposure Test ( for 13 years) Heat-Resistance - GL is far superior to that of galvanized, and almost equal to characteristics of Al-coated steel, Weldability - spot and seam welding test pass. Workability - GL has the same characteristics with galvanized steel sheet in workability & formability, and especially, micro crack at forming section is much less than galvanized steel sheet. Therefore, GL has excellent durability at forming section. Heat-Reflexibility - GL's heat reflexibility almost doubles that of galvanized steel so it has an energy saving effect if it is used in roofing and panelling without painting Paintability - GL can be painted without pre-treatment or weathering when used for signboard or general purpose, due to its superior adhesive strength between zinc layer and paint, unlike glavanized steel which requires weathering or pre-treatment. Production Availability Coating Weight Surface Treatment Thickness(mm) 0.3~2.5 AL, ZN alloy Coating weight Coating Thickness Chromated Width(mm) 600~1600 100g/m2 26 Anti-Finger Sheet Length(mm) 600~5,000 120g/m2 32 Oiled Coil Weight(Max) 22M/T 150g/m2 40 CR free Coil Inner Diameter 508/610 200g/m2 52