Prepainted rolled Steel Coil for construction Roofing

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Loading Port:
Shanghai
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TT or LC
Min Order Qty:
25 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

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 

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:What's the difference between Stainless and Clear steel?
Stainless steel is different than regular (clear?) steel because is is an alloy, or combination, of steel and other elements. Stainles steel has 15% chromium, which is very resistant to rust than regular steel. That is why stainless is more expensive
Q:what do you use (wet stone or steel) to sharpen a carbon knife blade?
There are many ways to sharpen knives. I guess your question is whether to use the steel that comes with knives, or a stone. Steels are only to straighten the edge, which is stropping. They won't sharpen a truly dull knife. For that you need a real sharpening system, of which a whet stone is one. The edge of a knife will get wavy with use - that's what the steel is for, to true it back up.
Q:What is mild steel and what items are made from it?
not really. Coins aren't usually made from steel (e.g. an US cent is mainly zinc which will melt with releasing toxic fumes while welding), spoons are usually stainless steel (which is not mild steel), bottle caps can be steel but also aluminum. Fasteners can be made from a wide variety of metals. Generally mild steel is steel with a relatively low content of carbon (2%) which makes it easier to weld. It's used a lot for structure in building (e.g. rebar). Mild steel is also cheaper than other kinds of steel. Tools are usually made from high carbon steel. Generally I'd recommend to go to the scrap yard and pick up some shapes and pieces you like if you don't mind having to clean the rust off. Most will be mild steel. Welding small and thin pieces is much more challenging than welding larger pieces of metal. You are more likely to melt a bottle cap than weld it. Also your steel needs to be clean (no paint, sandblast or brush rust off). I would highly recommend to talk your project over with your teacher before you get all frustrated.
Q:slingshot ammo: glass or steel?
Steel has more mass.
Q:what steel anodizes well?
Steel doesn't anodize in the sense that aluminum and some other metals do. However, it can be heat-colored. The trick is to clean the surface first (it must be oxide free), then heat gently until the colors appear. These are called temper colors in steel. They are due to a thin adherent layer of oxide that forms and thickens as temperature is increased. They are quite temperature dependent. As the steel is heated, the first color to appear is pale yellow. This will progress through darker yellows, browns, purples, and blues as the temperature rises. Above blue, the oxide becomes the gray/black color you are apparently getting - this is the result of heating too fast and too hot. See the chart at the site below for colors in plain carbon steel. Note that the temperatures are pretty low - It all starts around 400 F and if you go above 600 F the show's all over.
Q:Steel - Building Purpose!!!!?
Steel is used over most other metals due to its desireable properties for buildings. To name a few: strength, hardness, ductility, conductivity, flexability, weight, ability to shape/mold, non-combustability, weather resistance and cost Many other metals have the same properties, only on different scales. For instance, copper may be an excellent conductor, howwever it's expensive and not very weather resistant. Aluminum may be flexible, moldable, but not very strong. The list goes on and on..
Q:fallout 3 broken steel?
Yes, Broken Steel is the only DLC that raises your level cap. Yes, you have to complete the main quest to play it. It's kind of a prologue to the events of the ending. If you don't have the DLC and complete the game it just ends and you can't play it anymore. With the DLC you'll be able to continue playing. As for which one to get, that's your preference. Most people like the Broken Steel because it has to do with the main story and it raises the level cap - so that's the one I'll suggest to you. I also think The Pitt and Point Lookout are worth getting as well. Mothership Zeta is the one I liked least. I thought it was kind of stupid, to be honest. Operation Anchoarge is a simulation and it's pretty fun, but I don't think it's worth the $9.99.
Q:Wear on Non-Stainless Carbon Steel Chef's Knife?
Carbon steel chef's knives out perform stainless in every aspect except 1, care. You can't put them in a dishwasher. Wash, rinse and dry off. Do not keep them in a drawer filled with other kitchen stuff, rather, keep them in a cabinet or block. If it starts to rust you can use steel wool to clean them up, or fine grit sandpaper if you want to retain a fine finish. For your viewing pleasure, a chef's knife I forged from crane cable.
Q:grain growth in steel?
Well, I can't answer the question for you because, if the press bending is done cold, the grains will not grow (at least not with normal steel alloys). One wonderful thing about metallurgy is that the real answer is it depends because there are all sorts of weird and unexpected things that can happen. Cold work (which is what press bending is unless it is done hot or the amount of deformation is extraordinary high and fast so the metal heats up a lot locally) adds stored energy (strain energy) which provides one of the driving forces for recrystallization. Recrystallization is not a yes/no process, it is a process that happens as a function of time and temperature. Recrysallization of a cold worked structure will refine the grain size if done properly but the final stage of recrystallization is grain growth and you can end up with a larger grain size than you started with. The other thing that can affect grain structure is the deformation itself. There are all sorts of transformations that can happen due to the deformation process (twinning/martensitic is one) but, again, these don't usually qualify as grain growth. It may be that the question was incomplete, maybe the question is how does the press bending affect the final grain size after a subsequent anneal? The metallurgy of steels is fascinating because there are so many different microstructures that can be produced, hundreds (or thousand) different alloys, equilibrium and non-equilibrium phases based on composition and thermo-mechanical processing. Hope this helps
Q:Which bunkbed is more sturdy: Wood or Metal/Steel?
Metal, the screws can loosen, but most of the joints in a metal bed are welded, and screws that work loose are easy to tighten, once a screw or glued joint comes loose in a wood bed it will never be the same. The metal bunkbed my daughter had only needed screws to keep the upper safety rail from wobbling, but without any screws it would still stay together.

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