ALCOT® is a Al-Si coated cold rolled steel developed by Dongbu Steel, which combines mechanical properties of cold rolled steel and superior corrosion resistance, heat resistance and heat reflection properties of Aluminum.


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.

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 Aluminium coated steel 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 Aluminium coated steel the ideal choice for producing the heat reflector plates in toasters, ovens, gas ranges and oil stoves.

TEST RESULTS OF MUFFLERS
Material Corrosion rate
STS with CR 18% 22.9%
STS with CR 13% 27.5%
ALCOT® (80g/m2) 30.1% (16зн)
EGI (40g/m2) 92.8% (80зн)
CR 100% (87зн)
<With the CR's corrosion rate as base 100%>

Application:
  • car exhaust systems
  • construction materials
  • home appliances
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