• Pre-painted Rolled Coil for Roofing Construtions System 1
  • Pre-painted Rolled Coil for Roofing Construtions System 2
  • Pre-painted Rolled Coil for Roofing Construtions System 3
  • Pre-painted Rolled Coil for Roofing Construtions System 4
Pre-painted Rolled Coil for Roofing Construtions

Pre-painted Rolled Coil for Roofing Construtions

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Loading Port:
Tianjin
Payment Terms:
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.

 

 

Q:what is the chemical process that makes steel harder when it is heated and cooled rapidly?what does the heating of it do to the atoms?what does the cooling of it do to the atoms?what makes tempered steel so strong compared to untempered steel?
You can't temper all steels. Generally the material must be a high-carbon or tool steel. Different alloys temper differently, and tempering is usually done to get a specific set of characteristics, so you must know what you are working with and use the right methods and temperature. If you do it wrong, the material may be hard but too brittle for the purpose or have other issues. It can be simple, such as heating to a dull red, carbonizing the surface (use an acetylene rich flame until it blackens the surface) and oil quenching. Do that to a piece of tool steel (like a screwdriver) and it will case (surface) harden it to the point you can't scratch it with a file. Tempering changes the way the molecular structure in the metal is linked and oriented.
Q:What are the dimensions of steel coils used in automotive part manufacturing?
The dimensions of steel coils utilized in the manufacturing of automotive parts may differ based on the particular application and manufacturer involved. Nonetheless, typical dimensions for steel coils in automotive part production lie within the range of 0.5 to 3 millimeters in thickness and 600 to 2000 millimeters in width. Additionally, the length of the coils can vary considerably, generally spanning from a few meters to several hundred meters. It is crucial to acknowledge that these dimensions are not set in stone and can be tailored to satisfy the specific demands of each automotive part being produced.
Q:How are steel coils used in the production of aerospace components?
Steel coils are used in the production of aerospace components as they provide the necessary strength and durability required for various applications such as structural parts, fasteners, and landing gear. These coils are typically processed and formed into specific shapes and sizes to meet the design requirements of the aerospace industry.
Q:What are the factors affecting the formability of steel coils?
There are several factors that can affect the formability of steel coils, including the composition and microstructure of the steel, the thickness and width of the coils, the temperature at which the forming process takes place, the lubrication used during forming, and the equipment and techniques employed.
Q:This problem has puzzled me for a long time i always think about why stranded people on islands cant make a proper civilization and i always think it comes down to the ability to work metal. But its not like they could make a steel smelter/furnace out of sand...they would need an older one to use to make the new one...where the hell did the first one come from then????
You don't need steel to make a smelter. Early ones were made of simple materials such as stone (though the first ones developed would be to smelt gold, then bronze, then iron-widespread use of steel is a relatively late innovation) A desert island resident however would be unlikely to have the skills, nor the iron ore to make one.
Q:How are steel coils used in the manufacturing of construction equipment?
Steel coils are used in the manufacturing of construction equipment as they serve as a primary raw material for the fabrication of various structural components such as frames, bodies, and chassis. These coils are typically processed through cutting, bending, welding, and shaping techniques to create the necessary parts that provide strength, durability, and stability to construction machinery.
Q:What industries use steel coils?
Several industries use steel coils, including automotive, construction, energy, manufacturing, and transportation.
Q:which one(glass or steel)has more power and velocity? im planning on using my slingshot for hunting.
steel fo shizzle, glass can break, but steal goes threw. And wat are u hunting for dear? lol
Q:I have a Victorinox Pioneer, and I recently filed a little metal off the blade for some jimping. Is the already stainless steel blade still stainless?
It's solid stainless steel, stainless steel is just an alloy. You might have rubbed off some of the finish of the blade. Just polish it up if it's bothering you.
Q:How are steel coils used in the manufacturing of construction reinforcement bars?
Steel coils are used in the manufacturing of construction reinforcement bars by being processed through a series of steps. The coils are first uncoiled and then straightened before being cut to the desired length. These cut lengths are then shaped and bent into the required reinforcement bar shape using specialized machinery. Finally, the bars are heat-treated and cooled to enhance their strength and durability. Overall, steel coils serve as the primary raw material for the production of construction reinforcement bars, providing the necessary strength and structural integrity to concrete structures.

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