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

 

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

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:At what temperature would steel evaporate?
Steel is to broad. There are many types of steel with different melting/boiling points. Iron* has a boiling point of 5182 °F and a Heat of vaporization of 340 kJ·mol−1. iron is the main ingredient of steel, along with carbon and other various elements.
Q:why is ships made of steel?
Steel became the medium of construction almost be accident. The Royal Navy began to coat its wooden ships with a coating of steel to give them added protection in battle. They were known as the Iron Clads. From this it was a small step by such people as Brunnel to start construction in iron, then various other steels. The Great Eastern is a classic example. Over the last one hundred years the main improvement is in welding rather than a riveted construction. Improvements in steel have lead to a reduction in the scantlings and through this a reduction I the weight of the ship which has allowed for an increase in the carrying capacity. There always have been specialist ships built with alternative materials. Aluminium, wood, concrete and GRP. GRP. Also it must be remembered that there has been great advances in steel, from the early days of cast iron.
Q:What is a better knife Cold Steel VS SOG?
Look up a knife maker called Bench Made, the knife i recommend is the CQC7 its a tanto tip half serrated blade all low glare black folding with pocket clip. it has one of the hardest steel blades. You need to learn about steel hardness the harder the blade the sharper it can get and the harder the longer it will hold a edge. but hard steel can get brittle it can snap now as softer steel will bend and dull quick. the bench-made CQC7 goes for around $100 or that ball park...enjoy read some about the knife and think about what you want it for....my CQC7 can cut a coat hanger by pulling the serrate across the hanger!!
Q:How much pressure can concrete and steel take?
A common allowable stress for steel is 24,000 psi for A36 steel. Note that allowable stress is a working stress that is less than ultimate stress the stress at which the material will rupture. This allowable stress keeps the steel within the elastic range. Concrete allowable stress is typically around 3000 psi. Concrete, though, being a mixed material has variable values for allowable stress. Reinforced concrete design theory suggests that concrete should not be considered to be able to carry much, if any, tensile force. This explains why you will see steel rebar or reinforcing bars cast in to the concrete. The steel is there to carry any tensile forces, while the concrete is there to carry compression forces. This is a VERY basic explanation. There are entire books on both of these subjects...
Q:is 440 stainless steel good for throwing knives?
For throwing knives, 440 isn’t necessarily a bad choice. Does it list whether it is 440c or 440b? That matters somewhat. The advantages of 440 Stainless is that it’s relatively hard (for a stainless), it resists rust significantly, and it’s not so hard that it would shatter or break. On the down side 440 is notorious for not taking or holding an edge, but for a throwing knife, that’s probably not much of an issue. If you’re looking for something to train with, you’re fine here. It’s plenty of steel enough to stick in wood or other targets. Odds are it won't bend if you slam it into some wood. If it lands on concrete, eh, it's going to scratch and all that jazz, and it might hurt the tip if it hits first, but as has been said, you can use a file or grinder to get the tip back.
Q:What material is strongest? Human bone, steel, or concrete?
I guess I would ask you to define strong then? For example: make a bed and line it with steel, then lie down in it and have someone poor concrete on you. Let it dry overnight and then try and get out. What will break first? Could be anyone of these. If you had a watch made out of bone or concrete and it fell off, it too would break. There you have it amigo, define strong!
Q:Carbon Steel/ Stainless Steel knives?
If your talking about a folding pocket knife, I think that it's basically six one way and a half dozen the other. I actually do prefer stainless for my pocket knives. I don't want to oil a knife to the degree I feel carbon requires, only to then stick it my pocket to attract dirt to the knife and oil to my pants. I'm the exact opposite on sheath knives though. I like 1095 carbon steel, plain edge sheath knives. I'll thrash on them HARD, and I rarely have major edge problems. Of course, I require them to be coated with some kind of powder coat or the like, because they can rust, but I do try and keep them clean and dry when in the sheath, so they won't pit the uncoated edge. My reasons for this sheath knife preference is multi-fold. First, these knives are simply affordable. I don't spend $80 dollars on a outdoors sheath knife. I use the tool too hard to want to spend more. I don't like the more traditional stainless steels such as AUS-8, 420HC, and 440C (not to mention the HORRENDOUS 440A) because I feel that the all else being equal, a stainless blade will bend before a carbon blade will break. I also think that carbon holds an edge at least as well, if not better, than traditional stainless, and it's much easier to hone. I don't know much about these new laminates, other than the very hard, but not so tough. They seem to be POSSIBLY too brittle for my use. That, combined with the fact that they cost a FORTUNE, means that I just won't be considering them.
Q:Aluminum and Steel brittle or ductile based on these results?
Only steel(of this pair)might be liable to brittle fracture,which would be implied by almost zero elongation or reduction in area at fracture.On this basis the steel has not failed by brittle fracture.I would expect much more elongation in pure aluminium than your sample shows so I presume it to be brittle unless it is an alloy rather than commercially pure aluminium.However brittle fracture in metals is a particular phenomenon to be determined by impact tests and examination of fracture surfaces and is particularly relevant to metals with the body centred crystal structure.
Q:Steel Buildings!!!!!?
Not necessarily as most concrete buildings are steel re-inforced anyway. As for durable, if talking time based, no, because steel will corrode and concrete will not. The good thing about concrete is that it has good load bearing capability over wide spans whereas steel will bend unless properly supported. Concrete is cheaper also....
Q:What is steel used for?
buildings bridges automobiles elevators railroads and railroad equipment appliances and many many more. Steel is used almost everywhere. reference: Iron and steel are used widely in the construction of roads, railways, infrastructure, and buildings. Most large modern structures, such as stadiums and skyscrapers, bridges, and airports, are supported by a steel skeleton. Even those with a concrete structure will employ steel for reinforcing. In addition to widespread use in major appliances and cars (Despite growth in usage of aluminium, it is still the main material for car bodies.), steel is used in a variety of other construction-related applications, such as bolts, nails, and screws.[66] Other common applications include shipbuilding, pipeline transport, mining, offshore construction, pipeline transport, aerospace, white goods (e.g. washing machines), heavy equipment (e.g. bulldozers), office furniture, steel wool, tools, and armour in the form of personal vests or vehicle armour (better known as rolled homogeneous armour in this role). .

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