prepainted Rolled Steel Coil For Construction Roofing Constrution

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50 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 Constrution

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 Constrution

prepainted Rolled Steel Coil For Construction Roofing Constrution

prepainted Rolled Steel Coil For Construction Roofing Constrution


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 Constrution


  prepainted Rolled Steel Coil For Construction Roofing Constrution

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:mild steel?
Weight per meter kg/m kg/m = (Oc - 4Wt) * Wt * 0.00785 Oc = outside circuit, Wt = wall thickness For sq. steel tubes: Oc = 4*a For rect. steel tubes: Oc = 2a + 2b Specific Weight =7.85 g/cm3
Q:Is blue steel stronger than stainless steel? i heard it is.?
Blue Steel is definitely stronger than stainless. Le Tigre and Ferrari are too. However, nothing compares to the strength of 'Blue Steel' to a non-ambi-turner.
Q:Do Case Knives Use Good Steel?
Old Case Knives
Q:Which is stronger - sterling silver or stainless steel?
Silver is a relatively soft metal, while stainless steel is an alloy that has been designed for strength and durability. Your ability to use the stamp on steel will largely depend on the stamp's material. Why not just man up and give it a go?
Q:Damascus Steel vs. Carbon steel with a simulated temper for a sword?
it depends on so many factors first of all is it functional damascus steel or can you see the grain? what type of carbon steel is it generally most makers use1045- 1060 a good quote of something I read was asking what steel is best for a sword is like asking how long string should be generally if they say carbon steel and do not say what grade it is they mean 1045 meaning it has 4.5 carbon content now this if properly tempered can make a good sword but it would not be known for it's durability or it's edge retention it would be average at these things as for damascus steel well as I said before it is just any steel that has been folded some people think it has magical properties imparted by the folding process but it is just steel there is slightly a higher chance of a damascus steel sword having deposits of impurities along the blade and at cheaper blades this risk is even higher that being said many good swords made of damascus on the market are very good quality any sword no matter if it is made of damascus, carbon, spring. or tool steel should be tempered always no question about that
Q:Aluminum alloy rolling doors and color steel shutter door that good
The material and structure design Aluminum Alloy rolling shutter door out of the ordinary, can effectively prevent glare and ultraviolet radiation, sunlight greenhouse effect on indoor has completely solved, applicable to all kinds of changes in climate and weather, has a long-term protective effect on indoor environment, tests show that the shutter doors and windows to keep out sunshine rate to 100%, the the rate can reach more than 95% block temperature.
Q:What specific metals are in steel?
steel is iron with a little bit of carbon mixed in. how much carbon determines the hardness of the steel. stainless steel is the same mostly, it has nickle and chromium added in to make it corrosion resistant.
Q:Best battle-ready katana steel?
There is no such thing as a battle ready katana... if it is not ready for battle - it is not a katana. Having said that: The hardness of the cutting edge depends on the carbon content the better (in general). 1045 is poor quality steel for sword manufacture. Musashi swords are cheap pieces of crap. 1060 is better. Some manufacturers use modern materials that aren't perhaps consistent with traditional manufacture, like 9260 silicon spring steel or even L6 Bainite. Damascus steel is not a type of steel at all. It is a folding technique that creates a wavy grain in the metal. It may or may not mean that a sword is good. No swords will stand up to contact with other swords. They will inevitably be damaged. The best way to find a quality sword is to ask you instructor. There are no quality swords under a thousand dollars. The answer also depends on what you are going to do with the sword. It may also depend on the style or school of swordsmanship.
Q:Can a 1000lb hollow steel ball float in water?
sure, if the volume of air is about 7 times the volume of steel, the specific weight of the steel/air system would be below 1.0 and it will float. How do you think ships float?
Q:What is the molar mass of Steel?
Steel is an alloy - a mixture not a compound; it doesn't have a chemical formula. Only elements and compounds have molecular weights, not mixtures that aren't composed of a uniform molecule, so neither answer is correct.

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