prepainted rolled steel Coil for Construction Roofing Constrution

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Shanghai
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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:Why nickel makes stainless steel non-magnetic when nickel itself is ferromagnetic?
Dear Ian, Magnetism doesn't add up or average out in that manner. Ferro-magnetism requires that all the spins align. This is a complex effect and needs a subtle interaction between adjacent atoms in the lattice and their singlet electrons. The distance between the the atoms is what is important. Some stainless steels are ferromagnetic because they have the correct spacing, others are not because the spacing is wrong. This spacing is influenced by the makeup of the alloy. Hope that helps a bit:RufusCat Copyleft:RufusCat
Q:How can i make difference between iron and steel?
There are literally hundreds and hundreds of different commercial steel alloys and a good number of iron alloys so... it depends. Technically, steel is any alloy that is mostly Fe with some amount of carbon. Even if you have access to the necessary lab equipment, CTE (coef of thermal expansion) and specific heat are not very straight forward tests. There are, of course, chemical analysis instruments for measuring C content in steels so, if you really need to know, you can spend money at commercial lab that does these tests. One quick test to judge C content... touch the metal to a grinding wheel, higher C content produces more sparks. To calibrate the way this looks, compare the sparks from a drill bit (usually 1090 steel so 0.9 wt% C) to a steel nail (low C steel). Unfortunately, the difference in sparking between steels with pretty low C content and a piece of iron will not be very dramatic. Of course, iron might mean Cast Iron and, again, there are a good number of commercial cast iron alloys and there are 4 basic types of cast iron alloys and they contain high amounts of C.
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:Origin of the steel guitar in Country music?
As I don't know for sure I have a couple of really good guesses. I would say either Jerry Byrd of Ernest Tubb's Texas Troubadours or Don Helms of Hank Williams' Drifting Cowboys. I can tell you for sure that Bud Isaacs was the first player to use a pedal steel guitar on a hit recording: Slowly by Webb Pierce in 1953.
Q:dangers of the steel factories?
All manufacturing jobs of that era were incredibly dangerous, even textile work, but steel work was likely the worst. Men would fall into vats of molten metal, be crushed under huge metal bars, hit by cranes, burned by simple contact with any of the red hot pieces of metal flying all around, and most commonly, die from asphyxiation or lung ailments from the constantly burning fires. Heat stroke was a big killer, too. There was virtually no form of compensation, either for injured workers, or, in the case of death, for their families. The Bessemer method, which Carnegie introduced into the US, was hoped to improve conditions...instead, it merely improved output, and Carnegie's factories after 1900 worked 200,000 men, twelve hours a day, on wages that barely kept their families alive.
Q:CONNECTING STAINLESS STEEL TUBE (SOLDER?)?
ss has to be either welded or brazed you can [solder ] it but it has to be a silver solder, and will not have any strength
Q:can you put nylon strings on a steel string acoustic guitar?
Yes you can! The neck of the guitar will be fine if the tension is less (which it is for nylon strings). Knot the nylon strings about 3 times at the end then push through the bridge hole and push the pin down. The guitar will need tuning more regularly but the sound is great especially with a fibreglass bowlback (Martin Smith £50 from E Bay). Through an amp it is awsome. A cheap fix. PS Don't wind around the winding post too many times as the extra tuning will stretch the strings.
Q:Whats the differene between steel and stainless steel ?
from wikipedia: In metallurgy, stainless steel, also known as inox steel or inox from French inoxydable, is defined as a steel alloy with a minimum of 10.5% to 11% chromium content by mass. Stainless steel does not corrode, rust or stain with water as ordinary steel does, but despite the name it is not fully stain-proof, most notably under low oxygen, high salinity, or poor circulation environments. It is also called corrosion-resistant steel or CRES when the alloy type and grade are not detailed, particularly in the aviation industry. There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and resistance to corrosion are required. Stainless steel differs from carbon steel by the amount of chromium present. Unprotected carbon steel rusts readily when exposed to air and moisture. This iron oxide film (the rust) is active and accelerates corrosion by forming more iron oxide, and due to the dissimilar size of the iron and iron oxide molecules (iron oxide is larger) these tend to flake and fall away. Stainless steels contain sufficient chromium to form a passive film of chromium oxide, which prevents further surface corrosion and blocks corrosion from spreading into the metal's internal structure, and due to the similar size of the steel and oxide molecules they bond very strongly and remain attached to the surface.
Q:Is the Bianchi Pista Steel bike good?
Steel is for real, all other materials compare them to steel. Carbon is a comfortable as steel, Alu is lighter and ti is less corrosive than steel. Steel is the standard that all other bikes are measured to.
Q:Steel Arena ...........?
Though okorder.com/.. You can also have a look!!

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