Pre-painted Rolled Coil for Roofing Construtions

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Loading Port:
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 Roofing Construtions

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 Roofing Construtions

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:How can i make difference between iron and steel?
Iron and steel have different thermal expansions and specific heats. You could either heat it up and see how much it changes in length or you could put it in water inside a calorimeter and observe how much the temperature of the water changes
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:Infi steel tactical folders?
Infi Steel Knives
Q:Are desalination plants made of steel?
yes stainless steel pipes
Q:Are oil and steel monopolistic competition?
While oil and steel may seem to be all the same, they are really not. There are many different grades of crude oil and many different types of steel.
Q:Which wheels are better? Steel? or Aluminum? and Why?
Steel rusts....The nicer wheels are aluminum alloys. Go with the aluminum
Q:knife made of 304 stainless steel?
just because something is made out of 304 stainless steel does not make it tougher than carbon steel. Stainless steel includes other elements such as chromium. 304 stainless cannot be hardened by heat treatment.
Q:What are some good knife steels?
that's a hard one, right here is why. once you like a truck you do no longer want a Porche and vice versa. In different words have been one steel excels the different is unfavorable. For overallstrengthh i like 5160, for organic area retaining i like D2, O-a million and 52100 are probable the appropriate carbonsteel in area retaining. in case you like a knife with corrosion resistance then stainless is the appropriate determination. yet stainless needs to cryo dealt with to benefit the finished skill of the steel. I don'trecommendinless for any blade over 5 as a results of fact the greater desirable grain shape won't be able to take flexing and could wreck. For a heavy accountability super knife I recomend carbon steel with a differential temper as carried out good it may flex without breaking. What does all this mean? the appropriate steel is not any further effective than a decrease high quality steel if there's a deffitiancy in warmth therapy or layout. D-2 has not greater reducing potential than 440c at 57r. i do no longer use stainless in my knives as they're puzzling to warmth manage, D-2 case in point, fifty deg. in the two direction from the hardening temp (which ought to be held for minimum of 20-half-hour) can mean 2 factors Rockwell. All stainless are this type, as such maximum manufactures in no way comprehend the potetiel of the steel. right here is what i exploit, on a small knife have been i want greater effective area retaining from a greater durable temper (60r) i like O-a million, W-a million and 52100. For greater desirable knives L-6 works properly. For a survival/attempt against knife 5160 is my determination. those are not the only steels accessible, the books are full of them. solid luck.
Q:How much pressure can concrete and steel take?
No particular answer because it relies upon on: the width of the wall the scale no matter if the wall itself contributes to the 12tonnes load, yet in ordinary maths, you may have any blend of width as against length: 1m huge by using 2.ninety 4 m lengthy 0.5m huge by using 5.88m lengthy etc etc it isn't so ordinary as this in spite of the indisputable fact that.....for causes said above
Q:what's the difference between natural rolled oats oatmeal and steel cut oatmeal?
Steel cut oats have health benefits. They are delicious and very good for you! The difference between regular oatmeal and steel cut oatmeal: Steel-Cut Oats are whole grain groats (the inner portion of the oat kernel) which have been cut into two or three pieces using steel discs. Golden in colour and resembling mini rice particles, they are as nature intended - nothing added and nothing taken out. Rolled oats are flake oats that have been steamed, rolled, re-steamed and toasted. Due to all of this additional processing they have lost some of their natural taste, goodness and texture.

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