Prepainted aluminum Zinc rolled Coil for Construction

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25 m.t.
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30000 m.t./month

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Structure of Aluminum Zinc Rolled Coil

 Prepainted aluminum Zinc rolled Coil for Construction

Description of Aluminum Zinc Rolled Coil
Aluminum zinc coils is a kind of coated steel coil/sheet. With the cold rolled steel of different strength and thickness as substrate, it is produced through applying Al-Zn coat on both faces by hot dip process. In its coating, Al accounts for about 55%, Si 1.6%, while the remaining is Zn. Aluminum zinc coils enjoys both the physical protective feature and durability of Al and the electrochemical protective property of Zn. And its surface has bright silver color and regular embossed-like figure, which are highly decorative. 


Main Feature of Aluminum Zinc Rolled Coil for Construction Roof

1.Corrosion resistance: It mainly depends on the aluminum protection. When the zinc being worn, the aluminum will  form a dense layer of aluminum oxide, resist corrosion material to prevent further corrosion inside. 
2. Heat resistance: Aluminum zinc alloy steel sheet has excellent heat resistance, can withstand high temperatures over 300 centigrade, and is similar with aluminized steel high temperature oxidation resistance. It often used in chimney pipes, ovens, fluorescent lighting device and the device cover. 
3. Heat reflective: Galvanized steel plate heat-reflective high rate is twice as galvanized steel, often used to make insulation materials. 
4. Economy: Because density of 55% AL-Zn is smaller than the density of Zn, so in the same weight and thickness of Galvanized zinc layer, aluminum-zinc steel plate is larger area more than 3% of galvanized steel sheet. 


Applications of Aluminum Zinc Rolled Coil for Construction Roof
1. Construction and building: roofing; ventilating duct; handrail; partition panel;etc.

2. Electric appliance: refrigerator; washing machine; refrigerator; DVD;etc.

3.Transportation: oil tank; road sign; etc.
4.Agriculture:barn; etc.

5.Others:vending machine; game machine; etc.  





Specifications of Prepainted Aluminum Zinc Rolled Coil for Construction 


Hot Dipped Galvanized Steel Coil / Galvalume /Aluzinc Steel coil

Material Grade

SGCC / SGCH  / DX51D+AZ, etc






Thickness: +/-0.02mm , Width:+/-2mm




Raw material: Hot rolled steel coil --> Cold rolled_>hot dipped galvalume


Dried, Chromated, Unoiled


Regular spangle , small spangle, zero spangle



Coil weight

3-6 tons

Export package

Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed


FAQ of Prepainted Aluminum Zinc Rolled Coil for Construction

We have organized several common questions for our clients,may help you sincerely: 

1. What is the minimum order quantity ?  

Our MOQ is 50mt for each size. And we will consider to give more discount if you make big order like 1000 tons and more. Further more, the more appropriate payment term your offer the better price we can provide. 

2. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-25 days, but the shipment will depend on the vessel situation.

3. How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.


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Q:Why is iron stronger than steel?
Firstly Iron is not stronger than Steel. You must understand that steel is made with iron. Steel is iron with carbon infused into the crystal lattice; thus making it stronger. Iron was used as the backing because it is more ductile and resilient than steel because steel is stronger and more brittle. So on this basis steel is stronger and better to hit the armor first with more cutting power because it wont yield to softer materials, and iron was suited for the backing because it would allow it to bend as pressure is being applied, but without braking.
Q:examples of some common alloy steels, what are their compositions and properties?
Steel is an alloy consisting mostly of iron, with a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten.[1] Carbon and other elements act as a hardening agent, preventing dislocations in the iron atom crystal lattice from sliding past one another. Varying the amount of alloying elements and form of their presence in the steel (solute elements, precipitated phase) controls qualities such as the hardness, ductility, and tensile strength of the resulting steel. Steel with increased carbon content can be made harder and stronger than iron, but is also less ductile. H.
Q:What is better carbon steel or stainless steel for a knife?
The better grade of stainless is the top choice, but it can be hard to find, and expensive. - Surgical scalpels are made of it. (Common '420' stainless will not hold an edge as well as high carbon steel.)
Q:Is Titanium stronger than mild steel?
The tensile strength of mild steel is about 70kpsi. Pure titanium is 60-110kpsi, and with 7% manganese it is 130-170kpsi. 1kpsi = one thousand pounds per square inch. So in other words, high grade titanium can be somewhat stronger than mild steel.
Q:AK47 firing through steel?
A very thin layer of steel. I've fired the AK47 at tanks, ofcourse that wouldn't penetrate but it's not going to penetrate anything crazy. It is a strong Assault Rifle don't get me wrong.
Q:What is so special about Japanese steel?
Well Japan, with democracy and code standards, would be better than China or Mexico, with poorly paid workers and poor standards and poor quality. I don't know why or if its better quality than US steel
Q:manufacturing process of steel containers?
There are many types of steel containers and many different mnfg processes. There are also thousands of different steel alloys. Steel is used for canned food, compressed air cyclinders, hydraulic pressure vessels, electrical boxes, and many other containers. Steel containers are made out of sheet metal by soldering, brazing, spot welding, seam welding, riveting, bolting, screwing, etc. Heavier wall containers are fabricated of plate steel. Some steel containers are made by deforming the steel by extruding, forging, spin forming, drawing, ironing, etc. Some steel containers are made by machining. You should be able to find plenty of references if you search for these terms. good luck
Q:whats the difference between weld steel and sheet metal?
Most sheet metal is coated with galvanizing. Not fun to weld on. Most steel for welding use is just carbon steel.
Q:Why nickel makes stainless steel non-magnetic when nickel itself is ferromagnetic?
Steel is magnetic because of the alignment of the spin in the electrons of the atoms in the crystaline matrix of the steel. Nickel atoms are not the same size as Iron atoms and Chromium atoms. by having several different sizes of atoms in the alloy, it prevents a uniform crystaline matrix from being formed. If you imagine a box of marbles that are all the same size, they will all settle into a regular pattern in the box. But a bunch of mismatched marbles will be jumbled together in irregular patterns. This prevents the magnetic properties of either element from asserting itself.
Q:whats better? steel irons or graphite?
Graphite Or Steel Irons

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