Prepainted rolled Steel Coil for construction Roofing

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

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Structure of Prepainted Rolled steel Coil for Construction Roofing

 Prepainted rolled Steel Coil for construction Roofing

Description of Prepainted Rolled steel Coil for Construction Roofing
Prepainted Rolled steel Coil 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. 


Prepainted rolled Steel Coil for construction Roofing

Prepainted rolled Steel Coil for construction Roofing

Prepainted rolled Steel Coil for construction Roofing


Main Feature of Prepainted Rolled steel Coil for Construction Roofing

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 Prepainted Rolled steel Coil for Construction Roofing
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.  


Prepainted rolled Steel Coil for construction Roofing


  Prepainted rolled Steel Coil for construction Roofing

Specifications of Rolled steel Coil for Construction Roofing 


Prepainted Rolled steel Coil for Construction Roofing

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

10MT max

Export package

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


FAQ of Prepainted Rolled steel Coil for Construction Roofing

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:At what temperature would steel evaporate?
Steel is to broad. There are many types of steel with different melting/boiling points. Iron* has a boiling point of 5182 °F and a Heat of vaporization of 340 kJ·mol−1. iron is the main ingredient of steel, along with carbon and other various elements.
Q:What effects does the hercules control steel have?
I guess that since Steel doesn’t have headphones connection and a built-in soundcard, one won’t be able to play a track on one deck and prelisten the track on the other without using an external usb soundcard, right? I was wondering what’s the point in releasing a product like this if you also have to buy a bunch of equipment to be able to do sth “fondamental”: play while preparing your next song. However since the steel is meant for DJ’s who already have a great soundcard, but I don’t see why a Steel+sound card is ONLY for pro’s. Yes it’s designed for pro’s but you can use it as a beginner. Some consoles you also need to consider: Hercules Steel/RMX, Numark OMNI/Steath. It's all personal decision. Peace, Love Happiness
Q:How much does stainless steel cost? Per lb?
Ask for the best offer on OKorder and find out.
Q:whats the benifits of using steel material for fasteners?
Relatively cheap, strong, and non-toxic. For Carbon Steel alloys rust and corrosion are problems. For stainless alloys, cost becomes the problem [and corrosion is not eliminated]
Q:hard ionized vs stainless steel cookware?
Hard anodized generally refers to aluminum that has had a specific surface treatment. The benefit of aluminum is that it's a better conductor of heat than stainless, so it will heat up faster, depending on thickness. It's also lighter than steel, if that matters to you. As far as stainless steel, it all depends on the quality of the steel and of the construction. Some pots and pans are made from cheap grades of stainless which can suffer from corrosion problems. Though this shouldn't affect the taste of the food, only the appearance of the pan. Companies making bargain products may also skimp on materials by making the metal thinner; this causes hot-spots when cooking, In the case of skillets, thinner materials are more likely to warp over time. Stainless steel is generally stronger and tougher than aluminum- less likely to dent. Thought again, strength also depends on thickness. A good quality stainless pan is hard to beat in terms of durability, these things can last several lifetimes. On the other hand so will a good quality aluminum one.
Q:Polishing stainless steel (revolver)?
Stainless Steel Revolver
Q:What are the components of Stainless Steel?
The stainless steel is a family of ferrous alloys containing at least 11% chromium. The effect of this amount of chromium in steel in reducing corrosion is dramatic. There are many grades of stainless steels. By varying the chemical composition, heat treating, and cold-working, a wide range of properties is achieved. There are three types of precipitation hardening stainless steels: *martensitic types, which are supplies in the martensitic condition, are hardened by a simple aging treatment of the fabricated part. *Semi austenitic types, which are supplied in the austenitic condition, are transformed to martensite by special heat treatment before precipitation hardening. *the austenite in the austenitic types is precipitation hardened directly. The heat treatments of precipitation-hardening stainless steels are chosen to optimize mechanical properties. Precipitation hardening generally results in a slight increase in corrosion susceptibility and an increased susceptibility to hydrogen embrittlement.
Q:how is structural steel cut?
Yes, you can use a Sawzall. A ban saw or a cutting torch work too. But a cutting torch woudl leave a pretty rough edge.
Q:Which is a greener building material, steel or wood?
Wood as it comes from trees which are in nature.
Q:im getting a sword tommoro and i need to figure out the pros and con of stainless steel and carbon steel sword?
For display stainless is ok, no maintenance is required, for actual use carbon steel it the way to go, these blades will rust and need to be taken care of.

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