• Prepainted Rolled steel coil for Construction roofing use System 1
  • Prepainted Rolled steel coil for Construction roofing use System 2
  • Prepainted Rolled steel coil for Construction roofing use System 3
  • Prepainted Rolled steel coil for Construction roofing use System 4
Prepainted Rolled steel coil for Construction roofing use

Prepainted Rolled steel coil for Construction roofing use

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
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 use

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 use

Prepainted Rolled steel coil for Construction roofing use

Prepainted Rolled steel coil for Construction roofing use

 

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 use

 

  Prepainted Rolled steel coil for Construction roofing use

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 lifespan of coated steel coils?
The lifespan of coated steel coils may differ based on various factors, including the coating type and quality, the environmental conditions they face, and the care and maintenance provided. Typically, high-quality coated steel coils can last 25 to 50 years or longer. However, it is important to note that this estimate is not definitive and the actual lifespan may vary. To significantly extend the lifespan of coated steel coils, it is essential to conduct regular inspections, ensure proper installation, and perform timely maintenance. Moreover, exposure to severe weather, corrosive environments, and improper handling can potentially shorten the lifespan. Consulting with manufacturers or industry experts is recommended to determine the most suitable coating and expected lifespan for specific applications.
Q:My 8-year-old and 9-year-old boys have approached me with an interesting question. Does fire burn steel? One says yes, the other says no. Help me to settle yet another debate :)
It can burn it... but not the sort of fire you would find at home... Ive actually done it before in a silversmithing class with a very hot blow torch. It takes a long time, the metal first goes pink, then glowing orange red... it stays that way for a while, and then 'cracks' kind of loudly and basically disintergrates very suddenly. A torch this hot has a very hard (noisy) flame which is very transparent. But you cant burn it in the fireplace.
Q:I am currently writing a manuscript, and would like to know whether guns made out of steel, burn or melt when exposed to flames. Thanks.
Any steel will burn in the Presence of pure oxygen and high heat, that's how a cutting torch works.
Q:I know that it is used for katanas and swords but what is it and is it good i am pretty sure that it is the process of the steel but can I have a little more information.
Damascus or Wootz was a type of steel that appeared around 300BC It originated in India before spreading throughout Asia and the Middle East. It was considered a good steel, and for it's date of origin, exceptionally advanced for the level of technology in the ancient world. However the techniques to create the steel were lost forever after a decline in the swords manufacturing. The most popular theory is that the metal containing the required trace elements became less available over time due to unreliable trade routes. In the modern area, many scientists and metallurgists have studied the surviving blades, resulting in many discoveries such as evidence of carbon molecules fused in a crystalline structure. While the blades do provide some clues, it's only a small part of a much bigger picture as to the full process of the metal from raw to finished product. Now many have claimed to have recreated Damascus/Wootz steel, but none are recognised as being authentic. It has become a market ploy these days that draws people to purchasing the blades but all you are actually seeing is one of the many various forms of folded or patterned steel, which has varying degrees of quality, strength etc. We do know the steel was folded similar to the way the Japanese did in creation of old Katana, so often people will sell Damascus steel Katana that are nothing but folded steel swords like others. (Which is beautiful and traditional, but was a process designed to uniform impurities in the metal, something we no longer need to do with modern metals)
Q:PLS tell me all Foam Steel Characteristics and use?Thanks
Foam steel [often steel foam] is used in applications that require light weight but high rigidity and strength. Watertight doors on modern ships are often made of foam steel. Pressure doors on aircraft are possible uses. As we keep striving for lighter weights in cars, foam steel might have some useful applications in bodies. There is a technical paper online that is in .pdf format that has a good discussion of the process and characteristics of foam steel.
Q:What are the advantages of using steel coils?
There are several advantages of using steel coils. Firstly, steel coils offer superior strength and durability, making them suitable for various applications in industries such as construction, automotive, and manufacturing. Secondly, steel coils have excellent resistance to corrosion, ensuring longevity and reducing maintenance costs. Additionally, steel coils can be easily shaped or formed into different sizes and shapes, providing flexibility in design and manufacturing processes. Lastly, steel coils are recyclable, making them an environmentally friendly choice and contributing to sustainable practices.
Q:How are steel coils used in the manufacturing of renewable energy equipment?
Steel coils are used in the manufacturing of renewable energy equipment to form the structural components, such as frames and supports, as well as to create the outer casing and housing for various renewable energy devices, including wind turbines, solar panels, and hydropower systems. The strength and durability of steel coils make them essential for ensuring the stability and longevity of these equipment, enabling them to withstand harsh weather conditions and operate efficiently for years.
Q:How are steel coils inspected for surface finish?
Steel coils are inspected for surface finish through a visual examination process where trained inspectors assess the surface quality, texture, and any potential defects or imperfections. Additionally, specialized equipment such as surface roughness testers and optical profilometers may be used to measure the smoothness, waviness, and other surface parameters.
Q:How are steel coils used in the manufacturing of conveyor belts?
Steel coils are used in the manufacturing of conveyor belts as they provide strength, durability, and flexibility to withstand the heavy loads and continuous movement experienced in conveyor systems. The coils are shaped into a continuous loop, forming the core structure of the belt, which is then covered with various materials to enhance grip, prevent slipping, and improve overall performance.
Q:How are steel coils used in the manufacturing of marine equipment?
Steel coils are used in the manufacturing of marine equipment as they provide the necessary strength and durability required for the construction of various components such as ship hulls, bulkheads, decks, and structural supports. These coils are typically used as raw material for cutting, shaping, and welding into the required shapes and sizes, ensuring the marine equipment can withstand the harsh conditions of the sea and maintain its structural integrity.

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