Aluminium-zinc steel is composed of an aluminium-zinc alloy
structure, consisting of 55% aluminium, 43.4% zinc and 1.6% silicon
solidified at a high temperature of 600 degrees Celsius. Its entire
structure consists of aluminium - iron - silicon - zinc, the
formation of dense tetrameric crystals of an alloy coated steel.
Main advantages
Characteristics and Benefits:
1. Corrosion Resistance:
- The aluminum in the coating forms a passive layer that resists
corrosion.
- Zinc provides sacrificial protection, which is especially
beneficial at cut edges, scratches, and areas of coating damage.
- Overall, the corrosion resistance is significantly better than
that of pure galvanized steel, typically lasting up to four times
longer in similar environments.
2. Heat Resistance:
- Can withstand high temperatures up to 315°C (600°F) without
discoloration or loss of performance, making it suitable for
high-temperature applications.
3. Thermal Reflectivity:
- The coating reflects a high percentage of heat and sunlight,
which can improve energy efficiency in buildings by reducing
cooling costs.
4. Aesthetic Appeal:
- The surface has a unique spangled appearance, often considered
more attractive than plain galvanized steel.
- Can be pre-painted or left as-is for an aesthetically pleasing
finish.
5. Durability:
- Offers a long service life due to its resistance to weathering
and corrosion.
- The protective properties remain effective even in harsh
environments, such as marine or industrial settings.
