prepainted Rolled Steel Coil for Construction Roofing Constrution

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Loading Port:
Shanghai
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TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
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 

Product

Prepainted Rolled steel Coil for Construction Roofing

Material Grade

SGCC / SGCH  / DX51D+AZ, etc

Thickness

0.2-3.0mm

Width

600-1500mm

Tolerance

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

Zinc-coating

AZ40-150g/m2

Technique

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

Surface

Dried, Chromated, Unoiled

Spangle

Regular spangle , small spangle, zero spangle

ID

508MM

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:Surgical Steel Piercing Reaction?
The chances of a reaction from the stud is minimal. Surgical steel is an alloy specifically designed to make sterile safe surgical equipment. Often made with titanium or nickel, surgical steel is highly reactive and forms an oxidized layer when made. This layer creates a stable surface. The titanium and nickel are both very hard and resistant to scratches which make for easy sterilization. This will help keep your piercing clean. Be sure to follow the directions you receive when you get your piercing and keep it clean.
Q:i know stainless steel don't rust, does that go the same for just regular steel..?
There are dozens of types of steels, some stainless and some not. They differ a lot in their chemical composition and in how they're made (especially heat treating methods). They all vary in their strength, working properties and corrosion resistance. Regular steel (technically carbon steel--mostly iron, with a little bit of carbon) rusts quite badly if unprotected and in the right environmental conditions i.e. humidity/moisture. The iron in regular steel reacts with oxygen to form iron oxide--the orange/red stuff we call rust. Iron oxide is a loose and porous material which provides no protection to the underlying steel, which is why rusted regular steel will continue to rust. Stainless steel, in addition to containing iron and carbon, contains chromium as a component--and it's the chromium that is important for corrosion protection. To be fair, even stainless steel rusts but what happens is that it's the chromium that reacts with oxygen to create a microscopically-thin layer of chromium oxide. This layer is very tough and actually protects the uncorroded steel, preventing further corrosion. Broadly speaking, the higher the chromium content, the more corrosion resistant the stainless steel.
Q:Maple Story Steel Polearm?
you can buy it at the free market, but they worth more than 150k they sell for about 1m so good luck with getting polearm.
Q:Moravia’s coal and steel industries face challenges because they _____.?
As someone who have lived in northern Moravia at industrial steel and coal city of Ostrava, the closest point is b), but it is questionable. I am not sure how to compare efficiency of largest steel mill in Czech Republic in comparison to China which is the biggest exporter, but Czech steel factories were modernized and run more efficient that 25-35 years ago, and been privatized and owned by Mittal. The workforce had been shrinking, so not exactly sure what that c is pointing to (aging of workforce, size of it, or quality). Northern Moravia is a part of larger coal basin that extend to Poland with large coal deposits. This was foundation for the steel industry in the 1800's together with large ore deposits that was mined in proximity of the Beskidy mountains less than 25 miles from Ostrava. The iron ore mines had been depleted for several decades, and since the late 70's when communists run the country, they were already importing Soviet iron ore. Coal mining within city of Ostrava cased to exist in the 1990's due environmental issues, and also cost. The mines were getting deeper and more costly to operate and there is no more mining within Ostrava. Couple mines are still in operation in Karvina county which is next to Ostrava. Currently the coal deposits south of the city were not opened due environmental issue which would mean destruction of third largest mountain range in the country. Therefore, my conclusion is is b, as the ore and coal resources been shrinking. The biggest challenge not mentioned here is of course competition from Russia, Ukraine, and China, which can produce steel much cheaper.
Q:is 440 stainless steel good for throwing knives?
Good steel ain't cheap, cheap steel ain't good... If you're just starting out (practicing anyways), I would be less concerned about the material and more concerned about the style and shape of the blade to gain consistency in your technique... When you start getting proficient for competitions and such... then I'd start investigating steel grades... Anyways, here's a summary from the wiki: Type 440—a higher grade of cutlery steel, with more carbon, allowing for much better edge retention when properly heat-treated. It can be hardened to approximately Rockwell 58 hardness, making it one of the hardest stainless steels. Due to its toughness and relatively low cost, most display-only and replica swords or knives are made of 440 stainless. Available in four grades: 440A, 440B, 440C, and the uncommon 440F (free machinable). 440A, having the least amount of carbon in it, is the most stain-resistant; 440C, having the most, is the strongest and is usually considered more desirable in knifemaking than 440A, except for diving or other salt-water applications.
Q:If you combine stainless steel with gold, does that make stainless gold?
Stainless steel, I believe, was an actual trade name of a british cutlery company's knives, once the ability to create iron-chromium alloys was mastered. Stainless steel's main alloying agent that prevents it from rusting, is Chromium. The Chromium in the steel creates an protective layer (not unlike rust), which acts as a protectant for the rust-prone iron...keeping real rust away. I am no metallurgist, but I have not heard of gold being used as an alloying agent in common steels. I'm not even sure they would mix. Not all metals can be stirred together successfully. Even if gold could be used as an alloying agent for steel, it would need to be in such a small percentage, you would not end up with a metal that was gold in appearance...so it would still look like steel of some sort. The funny part is, gold is already stainless, and does not tarnish or rust as it is.
Q:Is steel lighter than iron?
There are lightweight steel alloys that are lighter, for a given volume, than pig iron. The words iron and steel have referred to different materials at different times, and are used in different ways. A steel structure may also be lighter because steel alloys are stronger, in a given cross-section, that iron or other types of steel. For example, a 1-inch bar of chrome-vanadium steel is stronger than a 1-inch bar of 4130 mild steel or pig iron. The more you find out about it, the more complicated it is. But the answer to your question is (a) Yes, and (b) it's all relative.
Q:Use of Steel in Jet Engines??
Yes you can use steel but you will want to use super alloys like hastaloy and inconel. These withstand the heat in the combustion areas. These are the actual materials used in these stages. If you only want your engine to have a service life of a few hours a conventional hot work steel like H-13 will probably be OK Blades are investment cast in foundries that carefully control the rate of cooling to create a very uniform grain structure
Q:I buy steel!!!?
Tear up the train tracks.
Q:Steel phases question!?
hey from what i learned in uni last sem, steel is originally ferrite form at first at room conditions. it will undergo poly morphic transformation to become FCC structure austenite form at 912 degree celcius. under conditions, it can become pearlite (which is a combination of ferrite and cementite) or bainitie( a finer form of pearlite). queching conditions to room temperature will form martensite which is the strongest but brittle steel form. tempered cementite is formed when we quench it and then raise temperatures before sir cooling. hope it helps, pls vote me best answer is i deserve it. thanks

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