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:Titanium or Tool Steel?
I would have to say titanium , but in doing so I am having to assume you have access to some very serious machinery.This is because Ti is extremely difficult to work and also work hardens, which could lead to cracking and failure.The other problem is that Ti is also very hard to weld .It seems tool steel is the choice for ease of working and weldability, so unless you can buy the bits you need precut or made then I'd say tool steel,preferably something along the lines of ramax.Your other option is spring steel as this is workable and gets hardened after shaping.
Q:Does a Butcher's steel actually make your knives any sharper ?
A steel is only for keeping the edge sharp and straight. You must get your knife sharp first whether you use a stone or an electric knife sharpener. It also depends on where your knife is from as to what angle you need to sharpen it at. If you mess up the first part you can use a steel all day but it wont sharpen your knife.
Q:About hydrolics which one used in steel melting shop?
The correct spelling is hydraulics. I haven't heard the term steel melting shop you probably means a foundry or a steel mill The most obvious example i can think of is hydraulic-operated fork lifts. Hydraulic cylinders are used to lift the forks and to tilt them upwards or downwards. The valves are coneccted to levers next to the steering wheel. Hydraulic pressure is supplied by a hydraulic pump driven by a propane or diesel engine. In some forklift designs the wheels are also not connected directly to the engine, but driven by hydraulic motors. There are also a large variety of machines used in steel mills and metalworking companies to cut and shape metal parts. for example, press brakes, plate cutting shears, stamping presses, hole punch machines, drawing presses, etc. These types all operate in much the same basic way. They use a very large cylinder or group of cylinders to apply many tons of force to different kinds of metal working tools.
Q:Can rubbing alcohol help clean stainless steel?
Your answers are all good but I would mention that we have a set of Sabtier chef knifes that were expensive these look to be stainless but are not quite as I think that marine grade stainless does not make the best cutting edge and my guess is that your knife would contain a greater amount of carbon better cutting edge but not so stainless. As a carpenter that has to sharpen cutting tools I add that I have never had a chisel or plane blade that was made of stainless steel and the best edges I obtain are with vintage tools. Bar Keepers friend is great as is 00 grade wire wool but do not put your knife through the dishwasher as the cleaning tabs will pit the surface of your knife.
Q:Is 100% carbon steel baking sheet safe?
100 carbon steel baking sheet safe
Q:Bendable steel for crossbow bow.?
You are trying to use plain carbon steel which only can be bent a little bit if it is to return to its original shape. You have to use spring steel or high carbon steel that is intended to be bent a lot and still recover to its original shape. Most people making crossbows with metal bows get a piece of steel from a leaf spring of a vehicle and grind it to shape. A steel bow cross bow almost always needs a very strong trigger mechanism and a miniature wench to pull the steel bow string into position. You might be better off making the bow of wood.
Q:turps and stainless steel?
real s/steel is nickel and chrome, however manufacturers of kitchenware, e.g s/teel cutlery use the cheaper version of nickel chrome and iron, that is why some s/steel products rust, so if you want to test any products carry asmall magnet and test the article
Q:why does steel rust?????????????
Oxygen in the air reacts to Iron particles in steel to form Iron Oxide (commonly known as rust).
Q:i have guestion a bout steel?
Hello, Hoping this can help you. :-)
Q:Do steel guns burn when exposed to flames/ extreme heat?
Steel guns would be very hard to melt, and impossible to burn, in any circumstances you could reasonably expect them to encounter at least. If you expose them to a flame they'll just get carbon on them from the flame, turning them black...

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