Hot Dip Aluminium Coated Steel Sheet (AL-COAT)
Hot-dip aluminum coated steel sheet combines the mechanical properties of cold-rolled steel sheet with aluminum’s high resistance retention, heat reflection, and superior rust resistance.
Superior Heat Resistance
Lengthy exposure to temperatures up to 450 degrees Celsius causes very little change in ALCOAT and does not affect its attractive surface brightness, compared to galvanized steel sheet and cold-rolled steel sheet.
- Heat Resistance Test Results
Test conditions: Naked eye comparison of the sheet after two rounds of test procedures (Heating (1.5 Hr), maintaining (5 Hr), cooling (17 Hr))
- Heat Resistant System of ALCOAT steel
When heated, an oxide film is formed on the surface as the alloy layer is activated, protecting its surface.
Superior Heat Reflectivity
Elegant surface of ALCOAT reflects about 80% of the heat at a temperature of 450 degrees Celsius. Its reflection rate goes up to 95% where infrared rays are present. This makes ALCOAT the ideal choice for producing the heat reflector plates in toasters, ovens, gas ranges and oil stoves.
- Heat Reflectivity
Types of ALCOAT steel sheets are categorized by the components of the molten pot. Applications are as follows.
Cross section of the coated layers
Production Availability by Size and Coating Weight
Grade and Symbol
Automotive components : muffler, exhaust pipe, fuel tank
Appliances : Electric stove, gas range, bread machine, toaster, frying pan, dryer, air conditioner, heat exchanger, stovepipe, pre-heater, dryer, duct, boiler, gas oven, rice cooker
Construction : Walls and roofs of chemical factories, fireproof walls
KS D 3544
JIS G 3314
ASTM A 525 (FOR ASTM A463)