



This hot-dip aluminum-coated steel coil delivers the strength of cold-rolled steel alongside aluminum’s key benefits: excellent heat reflection, superior oxidation resistance, and high-temperature durability.
1.Material: ASTM A463, SA1C,SA1D,SA1E,DX54D, DX56D, etc.
2.Thickness: 0.25-0.8mm
3.Width: from 800mm to 1250mm, all available
4.Coil Weight: from 3-8MT, according to the customer's request
5.AS coating: 12-25μm
6.Post-treatment type:Oiled, Non treatment
7.Technology: Hot Dipped
8.Coating Layers of hot dip aluminium coated steel:
Heat Resistance:
When exposed to 450°C for extended periods, 20 Gauge Aluminized Sheet Metal undergoes minimal change and retains its attractive surface brightness—unlike galvanized or cold-rolled steel coils.
Heat Reflectivity:
The sleek surface of Aluminium Coated Steel reflects roughly 80% of heat at 450°C, and up to 95% in the presence of infrared rays. This makes it an ideal material for heat reflector plates in toasters, ovens, gas ranges, and oil stoves.
Corrosion Resistance:
Aluminum naturally resists corrosion better than metals like manganese, molybdenum, chromium, tungsten, cadmium, iron, and zinc. Thanks to the stable aluminum oxide film, 20 Gauge Aluminized Sheet Metal offers far better surface corrosion resistance than galvanized coil in most environments.
Green Environmental Performance:
This material poses no harm to human health and qualifies as an eco-friendly product. Aluminium Coated Steel is fully recyclable.
Processing Performance:
20 Gauge Aluminized Sheet Metal can be processed using the same methods as standard steel plates.
Weldability:
Thanks to aluminum's softness and strong electrical conductivity, Aluminium Coated Steel bonds easily and provides excellent heat dissipation at the weld. Its coating has a higher melting point than galvanized steel, so it resists flow and maintains a small molten zone—eliminating the need for the high current typically required with galvanized steel.
Surface Appearance:
20 Gauge Aluminized Sheet Metal delivers lasting luster, along with superior corrosion resistance and weather resistance.
1. Automotive Components
Thanks to its excellent heat resistance and corrosion protection, 20 Gauge Aluminized Sheet Metal is widely used in automotive systems. Typical applications include mufflers, exhaust pipes, and fuel tanks—where prolonged exposure to high temperatures and road moisture would quickly degrade ordinary steel.
2. Home Appliances
With its high heat reflectivity (up to 95% under infrared), stable surface brightness at 450°C, and full recyclability, Aluminium Coated Steel is an ideal choice for appliance manufacturing. Common uses span electric stoves, gas ranges, bread machines, toasters, frying pans, dryers, air conditioners, heat exchangers, stovepipes, pre-heaters, ducts, boilers, gas ovens, and rice cookers.
3. Construction
The superior rust resistance and weather durability of Aluminium Coated Steel make it suitable for demanding building environments. Key construction applications include walls and roofs of chemical factories, where acidic or corrosive conditions prevail, as well as fireproof walls—benefiting from aluminum's high-temperature stability and non-combustible characteristics.
As China metal materials industry leading enterprises, the national steel trade and logistics "Hundred good faith enterprise",China steel trade enterprises, "Top 100 private enterprises in Shanghai”. Shanghai Zhanzhi industry Group Co., Ltd.,(shorted to Zhanzhi Group) takes the" Integrity, Practicality, Innovation, Win-Win " as its sole operation principle, always persist in putting the customer demand in the first place.


