Prepainted Rolled steel coil for Construction Roofing Constrution

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Loading Port:
Shanghai
Payment Terms:
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:Scientific answers please: Are there various grades of stainless steel?
In general, the austenitic stainless steels are considered to have the best overall corrosion resistance of all the stainless steels and to be the most resistant to industrial atmospheres and acid media. As the corrosion conditions become more severe (e.g. higher temperatures and stronger acids), more alloy content above that in type 304 is required. The addition of over 2% Mo to austenitic stainless steels increases resistance to pitting. Type 316 is a popular alloy in this class and contains 2.5% Mo.
Q:Why can't the coil weight be too low?
And may make the level stacked steel coil collapse, rolling, produce production safety accidents.
Q:Components of Steel?
Steel is iron and carbon.
Q:Steel sole combat boots?
The steel plate in the boot was about 5 cm long and 2 cm wide, it was located in the midsection of the boot sole but did not cover the heel. Prolonged wear, the humidity and soakings eventually caused the steel piece to break out of the mounding in the inside of the boot and cause blisters.
Q:Does anyone know about steel framed houses?
That's a first for me. The only draw back to a steel frame home is the cost, not only in material but also in labor. They do make a great home with proper installation. Make sure your contractor and framing crew have experience with metal frame construction. There is some differences in building codes, etc. Good Luck and happy building.
Q:What minerals are stronger then steel?
Sandpaper , quartz will wear a hole in alloy steel. Just rub it. The steel that is.
Q:Nylon or Steel Stringed Guitar?
Nylon stringed guitars are almost always intended for classical and flamenco guitar styles. You might see the occasional performer using one for folk, and of course Willie Nelson is famous for his nylon string sound in the country genre. The strings can be easier on a beginners fingers but you will find much less selection than with steel string guitars. Nylon has a mellower sound than steel, and good ones sound amazingly rich and full. Classical guitarists use their fingernails instead of picks to get more varied texture out of the guitar, but you can safely use a pick. Steel stringed guitars are what you are seeing and hearing most if you listen to pop, rock, country, folk, etc. There will be a much wider selection of beginner instruments to choose from. ( and some of them will be horrible!) The strings can be tougher on your fingers until you build up callouses, but that only takes a month or so. A steel string guitar will sound correct in a wider range of music, but will never sound as good at classical music as nylon. Bottom line: you can learn on either style guitar, but unless you are planning to go into classical or flamenco guitar, go with steel. In either case, don't get the cheapest one out there. It's a real case of you-get-what-you-pay-for. A cheap one will be harder to play and keep in tune.
Q:Steel Building Construction.............?
A true structural steel building is composed of steel columns, steel bar joist,steel purlins,steel roof frames,and steel siding. This is all load bearing structural steel. The vulnerable area of a steel building is the exposure of this steel to extreme temps during a fire. Steel becomes weak at high temps and begins to twist and distort like a noodle in hot water. Most all steel buildings now are specified by the architect/engineer to have fire retardant spray applied to the key components to protect against high heat during a fire. Even with that some beams/columns are also wrapped with several layers of type x fire rated drywall. Multi story steel buildings usually have lightweight concrete poured over steel decking for all floors above the ground floor. Any and all penetrations in these concrete floors must be sealed around to stop fire and smoke from spreading from one floor to the next, and fire rated doors at all stairways to each floor. Even ductwork that runs to other floors must have fire rated dampers that close if signaled by a sensor, this stops smoke/fire from spreading through the ductwork. Sprinkler systems are usually required in new structures that exceed at pre-determined square footage by the state you are in. Hope this helps you out.
Q:STAINLESS Steel....?
Stainless Steel is named that because when compared to untreated steel it is virtually stainless. It is virtually stainless, and harbors very little germs and bacteria. That is why it has been the standard in the food industry for years.
Q:which is heavier: concrete or steel?
The denisty of reinforced concrete is taken to be 150 lbs/ft^3 The density of carbon structural steel is 490 lbs/ft^3

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