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.
USAGE
Automotive components
muffler, exhaust pipes, fuel tanks
Home Electrical Appliances
Electric stove, gas range, bread machine, electric stove, toaster, frying pan, dryer
Walls and roofs of chemical factories, fireproof wall
Other
Steam cover, other chemical equipment
DESCRIPTION
Superior Heat Resistance
Lengthy exposure to temperatures up to 450 degrees Celsius causes very little change in ALCOT and does not affect its attractive surface brightness, compared with galvanized steel sheet and cold-rolled steel sheet.
Heat Resistance Test Results
Test conditions: Naked eye comparison the sheet after two rounds of test procedures (Heating (1.5 Hr), maintaining (5 Hr), cooling (17 Hr))
Heat Resistance Test Results
category
300℃
350℃
400℃
450℃
500℃
550℃
600℃
ALCOT
○
○
○
○
△
△
×
GALVALUME
○
○
△
△~×
×
×
×
GI
△
△~×
×
×
×
×
×
○ : No change △ : Luster down × : Tums blackish
Heat Resistant Equipment using ALCOT steel
When heated, an oxide film is formed on the surface as the alloy layer is activated, protecting its surface.
Superior Heat Reflectivity
The highly elegant surface of ALCOT 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 ALCOT the ideal choice for producing the heat reflector plates in toasters, ovens, gas ranges and oil stoves.
Heat Reflectivity
Heat Reflectivity
Type
ALCOT
GI
100℃×24hr
80%
80%
450℃×24hr
80%
15%
설명
Coating Layers
Types of ALCOT steel sheet are categorized by the components of the molten pot. Applications are as follows
AL-COT 강판의 종류
Classification
Type Ⅰ Alumininized
Type Ⅱ Alumininized
components of the molten pot.
Al-Si(8~10%)
Al
Components of the alloy layer
Application
Heat resistance treatment
Weather resistance (construction material)
Cross section of ALCOT steel sheet of the coated layers