Pre-painted Rolled Coil for Construction Roof

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Tianjin
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
25 m.t./month

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Structure of Prepainted Rolled steel Coil for Construction Roofing

 Pre-painted Rolled Coil for Construction Roof

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. 

 

 

 

 

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.  

  Pre-painted Rolled Coil for Construction Roof

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:Can jet fuel melt steel?
The okorder.com/.. A flame from a wick burning kerosene demonstrates incomplete burning, hence sooty, yellow and a lower temperature flame like a candle. Kerosene in a cup or puddle only burns while it is hot enough to give off vapor. The vapor is all that is burning. It is not very hot, as it is not the right mixture with air. It may not even give off enough heat to keep the kerosene itself hot enough to keep burning. A kero blow torch flame might be typically 1100-1300°C but parts can reach 1760°C or more in some cases.
Q:Here is my dilemma, should I shoot steel case ammo in my ar15?
I am not aware of any catastrophic failures being attributed to Russian Steel cased ammo use. I would recommend checking out the several AR15 message boards and see what everyone who uses it has to say and if anyone has had serious problems. I have personally used Wolf steel case in all of my ARs with no serious issues. I have also fired it in several full auto rifles. What I noticed is that it is dirtier ammo than Winchester or Federal ammunition and I will get an occasional failure to eject. Right now, American production brass cased .223 is $.50-$1.00 or more per round when you can find it.. The Russian Wolf can be found for $.40 or less. Most people shoot whatever they can find and afford and do not worry about the warranty.
Q:what is the advantages in using mild steel as raw material in an experimental machining?
*Mild steel is ductile and can be easily machined. Generation of heat is less than that of steel machining.So, the tool can have better life and you can do more machining. Cost factor is of prime importance as other steel are more costly than Mild steel. Mild steel, a grade of steel that does not harden when heated and chilled with cold water, so further machining can be easy. Mild steel is easily available.You will find it in your scrape yard. No need to change the tool repeatedly and no special tools are required for machining. Above is the comparisation between alloy steel,SS and superalloys. Cutting speed and feed does not required special skills.
Q:What are black steel pipes made of ?
Black Steel or ductile steel pipes are made from scrap for the most part. Galvanized pipes are made from new raw materials and are electroplated to resist rust.
Q:quality of steel ..................!!?
Various ways: Carry out mechanical testing on it to see how strong it is. eg. Tensile testing, hardness testing, impact testing. Examine a cleaned up sample on the steel under a microscope to see what the steel grain structure is like and what condition it is in (hardened etc.) Or the easiest way is to ask the supplier what it is and then find a specification sheet giving you all the above information.
Q:Damascus steel sword blades question,?
Damascus: A folding technique where the steel is folded over itself many (generally up to sixteen) times, leading to hundreds or even thousands of layers (one fold = 2 layers, two folds = 4 layers, three folds = 8 layers, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, etc.). More folds than sixteen are pointless, as the layers would become thinner than one molecule - which is impossible. This method was developed to removed impurities from the steel (it also removes carbon, which is bad, but can be compensated for to some degree), but modern steel is so pure that Damascus folding is no longer needed. It is now used for aesthetic reasons; Damascus steel looks really good; you can see the layers in the blade. San Mai: Translates to three layers. Layers of softer, lower carbon steel (or iron) is forge welded to layers of harder, higher carbon steel. The lower carbon steel forms the core (and sometimes the sides and/or back), and the higher carbon steel forms the edge. The hard edge will hold its sharpness, the softer core provides shock absorption; making the sword harder to break. Unlike Damascus, San Mai is still very practical. San Mai folds should be invisible; if you can see a San Mai fold the forging was flawed and the blade should be discarded - you'll have to trust your seller that the blade is San Mai - you can't tell by looking. San Mai can be revealed by etching the blade with acid, such as lemon juice, but I don't recommend trying this unless you know what you're doing; you can permanently stain the blade. San Mai swords are more durable (and more expensive) than simple blades. They are more durable (and usually less expensive) than Damascus blades. A blade can be either San Mai or Damascus, or it can be both; Damascus steel which is then San Mai folded. Very cool, looks good and lasts long.
Q:How strong is 440 steel on a katana?
440 Steel is a grade of stainless steel, which is normally a very bad thing, as stainless steel tends to shatter more easily than regular steel. 440 grade is tougher than most other forms of stainless steel, though, and is used for knifeblades and surgical tools. Thing is, it is still prone to shattering from hard impact, which is something that a knife or surgical tool would not encounter. It will cut fine, and can be dangerous as any other bladed tool. However, if it were to hit bone, another blade, or any other rigid object, it is likely to shatter. So, no, it isn't the best kind of steel for an actual sword, though you shouldn't be using your sword in swordfights anyways, so you don't need to worry about it.
Q:Stain on stainless steel sink...?
The best product I have ever come across is Barkeeper's Friend. I use the liquid version rather than powdered version. It is a soft soft abrasive scrub designed for stainless steel. I original found it to use it on all my All Clad pots and pans to keep them beautiful and shining. I also have a stainless kitchen now, sink, stove and fridge...and I use Barkeepers on everything. It is fantastic. If you don't want to go out and find Barkeepers tonight, you can get a similar affect using baking soda mixed with dish soap. Make a good paste to gently rub on stains. Be sure to rinse the stainless steel surface thoroughly, and towel dry. If the stains still remain you can try vinegar. Remember to thoroughly rinse and towel dry. But tomorrow go out and get a bottle of BarKeeper's Friend...you will never regret it. UPDATE: just saw a few other answers, DO Not use steel wool (SOS pads) you will scratch the heck out of the finish and you will not be able to fix it.
Q:UNITED STATES STEEL OR GE?
I would go with some in one and less in the other. Given that steel prices have collapsed (and seeing as the Chinese economy is going into a recession, they will probably stay low for a while) I would say that because US Steel is a blue chip company it will be around for the long term, but, it won't make much for a while. GE on the other hand has been beaten down thanks to some mismanagement issues under current CEO Jeffrey Immelt, however, they have a range of strong products (save for their broadcast division, RCA/NBC). Given that the stock is at a severe low with the company itself being worth quite a bit (with a fair amount of bailout funds coming to its' financial division) and the Obama administrations' green initiatives coming online over the next couple of years the demand for their products will be high. I would simply say 70/20 GE/US. Good luck.
Q:Rusted steel straps on deck posts?
Sorry troll, doctors don't give a tetanus shot just because you came into contact with rusty metal. The belief that you need a tetanus shot for stepping on a rusty nail is not quite accurate -- it's not the rust that prompts the shot, it's the fact that the nail was on the ground and dirty.

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