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Brand Name : | Decho Steel |
Model Number : | ASTM A792M CS-B |
Certification : | ISO9001 |
Price : | 650 USD/MT |
Payment Terms : | L/C, T/T |
Supply Ability : | 1000 MT/DAY |
Delivery Time : | 30-40 DAYS |
Azulejos metálicosAZM150 AFP Galvalume Steel ASTMA792M CS-B
Corrugated Sheet Panels Roof Tiles GL 55% Aluzinc Steel Coil
Hot-dip aluminium-zinc coated steel plate is a pre-coated steel
plate obtained by hot-dip plating a layer of Al-Zn coating on both
sides of a cold rolled steel plate of various strengths and
thicknesses as a substrate, with a mass percentage of 55% Al
(aluminium), 43.5% Zn (zinc) and 1.5% Si (silicon) in the
composition of the plated layer, which combines the physical
protection of Al and high durability as well as the electrochemical
protection of Zn, and has the strength and plasticity of the base
steel, and the corrosion resistance of the coating. The material
has the strength and plasticity of substrate steel and the
corrosion resistance of plating, which protects the metal substrate
from internal corrosion. In addition, the surface has a highly
decorative bright silver grey colour and regular patterns with a
sense of embossment.
Lightweight steel coatings can be classified into two main types:
galvanised and aluminium zinc plated.
Galvanised Coating:
Customizable Thickness: The thickness of the galvanised coating can be adjusted based on the specific environmental conditions and functional requirements, typically ranging from 120g/m² to 275g/m².
Designation: For example, a Z275 galvanised steel sheet indicates that the zinc layer on both sides of the sheet weighs 275g/m².
Physical Changes: Over time, galvanised steel exposed to the atmosphere reacts with oxygen, causing the surface to darken.
Aluminium Zinc Plating:
Exceptional Corrosion Resistance: Aluminium zinc-plated light steel offers corrosion resistance three times greater than pure galvanised steel. It features attractive zinc flowers on the surface, making it suitable for use as exterior building panels. The abbreviation AZ150 denotes its designation.
Long-Term Color Stability: Aluminium zinc-plated steel maintains its appearance over time. When exposed to chemicals, a physical reaction forms an aluminium protective film on the surface, isolating the keel from harmful substances and preventing rust.
Mechanism of Corrosion Resistance: The superior corrosion resistance is primarily due to aluminium. When the zinc layer wears away, aluminium forms a dense layer of aluminium oxide, protecting the underlying material from further corrosion.
Outdoor Durability:
Aluminium zinc-plated steel coils have been tested in various atmospheric environments for over 20 years. These tests confirm that aluminium zinc-plated steel provides significantly better protection for cut edges compared to galvanised steel.
Heat Reflectivity:
Aluminium zinc-plated mild steel boasts high thermal reflectivity, nearly twice that of galvanised mild steel, making it an ideal choice for thermal insulation.
In summary, aluminium zinc-plated light steel keels offer superior
scratch resistance, durability, and thermal properties compared to
galvanised light steel keels, making them a more reliable choice
for various applications.
Aluminium-zinc-steel plated light steel has quite a few excellent
characteristics: Strong corrosion resistance, 3 times that of pure galvanising;
beautiful zinc flowers on the surface, can be used as building roof
exterior panels. Abbreviation AZ150, aluminium-zinc-steel plates
keel for a long time without colour change on the bare surface,
such as chemical corrosion, the surface of the physical reaction
occurs, the formation of aluminium protective film on the surface
of the keel, so that the outside world of chemical substances and
the keel separated from the separation of the keel, to protect the
keel of the main body of the material, to prevent rusting.
Corrosion Resistance: Zinc is highly chemically active, forming a thin, dense layer of
alkaline zinc carbonate film on its surface at room temperature,
which prevents further oxidation. Similarly, aluminum forms a layer
of insoluble oxides in the air, providing effective barrier
protection.
Heat Resistance: Aluminum-zinc plated sheets can withstand high temperatures up to
315 degrees Celsius, making them suitable for high-temperature
environments.
Reflectivity: Aluminum-zinc coated sheets have high reflectivity, with a heat
reflectivity nearly twice that of galvanized steel. This makes them
ideal for use on steel metal roofs, contributing to energy savings.
Ease of Painting: Aluminum-zinc-plated sheets have excellent adhesion properties
between the sheet and paint, allowing them to be painted without
the need for pre-treatment or weathering.
Coating Adhesion: The aluminum-zinc plating layer adheres well, making it suitable for direct application on advertising boards and general-purpose boards without the need for pre-treatment.
Application:
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