Aluminum Zinc Coated Coil
Your Premier Aluminum Zinc Coated Coil Manufacturer
Tianjin KaiDa Import & Export Co., Ltd. is a manufacturer specializing in the production of galvanized steel coils, aluminum-zinc coated coils, and roofing sheets. Our factory has three production lines with an annual output of 500,000 tons. We are also a professional international company engaged in the global sourcing and distribution of high-quality steel products. Our export sales include PPGI, PPGL, hot-dipped galvanized steel pipes, ERW black steel pipes, and other types of steel products.
Customized Services
Tianjin KaiDa Group is committed to providing value to clients — not only through our products but also through customized solutions. We can tailor products according to specific orders, fulfilling all customer requirements with our convenient one-stop service.
On-Time Delivery
With a mature logistics management system and a self-owned freight forwarding company, we ensure that our on-time delivery (OTD) rate reaches 100%.
Quality Certification
We are certified by TUV, SGS, and BV. All production processes strictly comply with international standards such as ASTM A53, BS 1387, JIS G3444, DIN 2440, API 5L, and GB/T 6728 to ensure high product quality.
Excellent After-Sales Service
Upon receiving the products, if you encounter any issues related to quality or packaging, please contact us. We will respond promptly to resolve the problem.
Prime Galvalume Steel Coil
Galvalume Steel Coil also named Aluzinc Steel Coil /Zinc-alum Steel Coil. The base material is non-alloy low carbon cold rolled steel coil. The surface composition is 55% aluminium, 43.4% and 1.6% silicon cured at 600℃.Galvalume has a gorgeous silver-white surface.
Description
|
Product Name |
Prime Galvalume Steel Coil |
|
Material |
SGCC,DC51D+Z,SGLCC,SGLCH,G550,G350 |
|
Thickness(mm) |
0.12 ~ 4.00 mm,As Your Request |
|
Width(mm) |
914mm-1250mm, As Your Request Regular width 1000mm, 1250mm |
|
Tolerance |
Thickness: ±0.01 mm Width: ±2 mm |
|
Zinc Coating |
AZ 40-275g/m2 |
|
Content |
55% Alu,43.5%Zinc,1.5% Si |
|
Treatment |
Passivation, Oiling, Lacquer sealing, Phosphating, Untreated |
|
Packing |
Generally package:Anti-water paper+strapped with min three strapping strips. Standard exporting package: Anti-water paper and plastic+covered by iron sheet+ strapped withmin three strapping strips. Excellent package:Anti-water paper and plastic film+ covered by iron sheet+ strapped with minthree strapping strips+fixed on the iron or wooden pallets by strapping strips. |
Main Features
Available for customized specification on customers' request.
Perfect Corrosion Resistance. The service life of galvalume is 3-6times as long as that of galvanized surface.
Perfect Light Refelectivity. The ability of reflecting light and heat is twice that of galvanizing.
Perfect Processing Performance. Fully meet the requirement of roll processing, stamping, bending, ect.
Perfect Heat Resistance. Galvalume products can be used at 315 degree Celsius for a long time without discoloration.
Excellent adhesion between the paint. Easy to paint and can be painted without pretreatment and weathering.
Application:

Buildings:
Roofs, walls, garages, sound walls, pipes and composite houses, etc.

Automobile:
Muffler, exhaust pipe, wiper accessories, fuel tank, truck box, etc.

Home appliances:
Refrigerator backboard, gas stove, air conditioner, electronic microwave oven, LCD frame, CRT explosion-proof belt, LED backlight, electric cabinet, etc.
Corrosion resistance: The coating of galvalume steel coil provides excellent corrosion resistance, resulting in good durability in a wide range of environmental conditions, especially in humid, salt spray and corrosive climates.
High Temperature Stability: These coils are usually highly heat resistant and can be used in high temperature environments such as industrial furnaces and water heaters.
Coating uniformity: Galvalume steel coil is usually coated uniformly, providing an even appearance and protection.
Lightweight: Galvalume steel coil is lighter in comparison to pure steel coils and are therefore widely used in applications where lightweight is required.
Electrical Conductivity:
These coils usually have good electrical conductivity and are suitable for electrical equipment and electronics.
Malleability:
Galvalume steel coil is easy to process and shape, and are therefore commonly used for a variety of products including roofing, piping, parts and decorative materials.
Environmentally Friendly:
The coating of galvalume steel coil is usually recyclable and environmentally friendly.
Production Process
Pre-treatment of steel coils
First of all, you need to uncoil, put the steel coil on the specialized machine, and then carry out pretreatment. Pre-treatment mainly includes oil removal, rust removal and other treatments to ensure that the surface of the steel coil is free of impurities, which is conducive to subsequent processing.
Surface treatment
Surface treatment is to make the surface of steel coils better adsorption of plating, enhance adhesion. Common surface treatment methods include physical and chemical methods. Physical methods are mainly used to increase the surface roughness by mechanical grinding, and chemical methods are mainly used to improve the surface condition by pickling, phosphatizing and other methods.
Aluminum zinc plating
After the surface treatment is completed, the aluminum zinc plating step can be carried out. This step is achieved by dipped in an aluminum-zinc liquid. The liquid contains metal ions such as aluminum and zinc, which are deposited on the surface of the steel coil by electrochemical reaction to form a uniform layer of aluminum-zinc plating.
Painting
Painting is the last manufacturing step of galvalume steel coil. This step forms a baking paint layer on the galvanized coil to protect the substrate and give the panel color and beauty, and improve the product's adhesion and corrosion resistance. Painting methods include spraying, brushing, rolling, coiling, etc. Different methods are selected according to different needs.
Surface treatment
Chromate passivated
1
>>
Unchromate passivated
2
>>
Oiled
3
>>
Resin coated(anti finger print)
4
>>
Dry
5
Surface finish
Small Spangle
Regular Spangle
Big Spangle
Various colours available: Green, blue, red and gold
Construction Industry: Roofs, interior, and exterior wall panels, soundproof walls, pipes, garages, and modular houses, pipe , tool shed etc.
Automobile Industry: Buckets, muffler, exhaust pipe, wiper attachment, fuel tank, truck box, etc.
Home appliances: Washing machine, refrigerator back panels, gas stoves, air conditioners, electronic microwave ovens, LCD frames, CRT explosion-proof belts, LED backlights, electrical cabinets, etc.
Agricultural: Like pig houses, chicken houses, granaries, greenhouse pipes, etc.
Others: Hot section insulation cover, heat exchanger, dryer, water heater, etc.

Packaging & Shipping
Each bare coil to be securely tied with two bands through the eye of coil (or not) and one circumferential.
The contact points of these bands on the coil edge to be protect with edge protectors.
Coil then to be properly wrapped with water proof /resistant paper, it then to be properly and completely metal wrapped.
Wooden and iron pallet can be used or as your requirements.
Delivery Time : 7-25 Days after payment.
Quality Certificate




FAQ
Tianjin Kaida Import&Export Co.,Ltd is one of the most professional aluminum zinc coated coil manufacturers and suppliers in China, specialized in providing high quality products with low price. We warmly welcome you to buy discount aluminum zinc coated coil from our factory. For more cheap products, contact us now.
High Strength Galvalume Steel Coils, Anti Finger Galvalume Steel Coils, GL Steel Coil