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:1. What has a higher bending strength: stainless steel 304 or chrome vanadium steel?
Type 304 stainless steel can be tempered to give tensile strength up to about 125,000 psi. There are many chrome vanadium alloys, and tempers, but they are generally very hard steels used for machine tools which are used to cut other steels. They generally are much stronger, and can be hardened up to tensile strengths of 250,000 psi and beyond. (Bending strength is proportional to tensile strength, but Cr-V steels are not usually used for beams or other structure members.) Cr-V steels are specialty alloys and will probably be a good bit more expensive per pound than common stainless alloys. For any steel, price depends on the form you are buying, i.e. plate, bar, or other shape, as well as the alloy and temper specified, and the quantity. You need to get prices from a supplier. You can find some online catalogs, but you usually have to call the vendor for price info.
Q:What is the structural formula for steel?
structural formula only apply to a chemical compound, and steel is not that. It is a MIXTURE, an alloy, of iron, carbon, and any of a number of other materials, such as chromium, manganese, etc.
Q:What company sells strong steel doors for homes?
Actually, the best doors are fiberglass. Steel doors are not solid steel. The steel is a skin, over framing and insulation. The cheaper doors have thinner steel skins.. That is why they get dented. Go to a real lumber yard. Home Depot and Lowes specialize in low price, not high quality. I use a brand, called Thermatru, that is available in New England. I am sure there are comparable brands. I don't care for Stanley. Stanley makes hammers. They bought a door factory and stick their name on the doors. Good luck.
Q:physics compression:Steel rod?
You need to calculate the stress on the rod and compare this with the mechanical properties of the steel. It would help if you were given more info. You will need to know something about the steel such as the yeild stress and E, the modulus of elasticity. The value of E is about the same for a wide range of steels. So long as the applied stress is below the yield stress, the strain is all elastic and is calculated from E. The real answer is that you can not answer this question since you do not know what the temperature is. Given the applied load, the change in length will be much different at room temperature than at 1500C.
Q:What are some characteristics of steel?
Characteristics Of Steel Hardening. - The characteristic difference between steel and pure wrought iron is as follows: - When steel is raised to a red heat and then suddenly cooled, it becomes hard and brittle. This process, which is known as hardening, has no effect upon pure wrought iron. Tempering is a characteristic of steel which distinguishes it from cast iron. If steel has been hardened by being heated and suddenly cooled, as above described, it may be softened again by applying a lower degree of heat and again cooling. This is known as tempering. Cast iron, on the contrary, though it is hardened by the first process, cannot be softened by the second. When a bar of steel is struck it gives out a sharp metallic ring, quite different from the sound produced by striking wrought iron. Other characteristics of steel are its great elasticity and its retention of magnetism.
Q:Are solid steel or synthetic violin strings better?
It depends on the tone you want. Synthetics are a more artificial, but rich tone. Solid steel strings will have a beautiful and bright tone, but may be a tad bit more difficult to play.
Q:Environmental concerns for a steel works factory?
Q:Soldering Steel Wire?
Soldering to steel is difficult. An electric iron may be enough depends on power. The steel must be clean. An abrasive like fine steel wool,fine sandpaper or even a rubber pencil eraser will work. Next an acid flux for the solder. Most electronic solder flux is not active enough for steel. Plumbers solder usually is. Plumbers solder is Lead free and has a slightly higher melting temp.
Q:What is 12 gage Cold Rolled Steel?
It's gauge.
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.

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