prepainted Rolled Steel coil for Construction Roofing Constrution
- Ref Price:
-
- 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
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.
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 are the different methods of painting steel coils?
- There are several methods of painting steel coils, including coil coating, spray painting, and powder coating. Coil coating involves applying a liquid coating to the surface of the steel coil, which is then cured and dried. Spray painting involves using a spray gun to apply paint to the coil, typically in multiple layers. Powder coating involves electrostatically applying a dry powder to the coil, which is then cured and fused onto the surface. Each method has its advantages and is chosen based on factors such as durability, cost, and desired finish.
- Q: How are steel coils loaded onto trucks or containers?
- Steel coils are typically loaded onto trucks or containers using specialized equipment such as cranes, forklifts, or coil trailers. The coils are lifted and secured onto the truck or container using straps, chains, or clamps to ensure safe transportation.
- Q: What are the dimensions of steel coils used in the agricultural machinery industry?
- The specific application and requirements play a significant role in determining the dimensions of steel coils utilized in the agricultural machinery industry. Generally, the dimensions of steel coils in this industry fall between 0.5 and 2.0 millimeters in thickness and 600 to 1500 millimeters in width. These dimensions are commonly utilized for agricultural machinery components like panels, frames, brackets, and reinforcements. It is worth mentioning that these dimensions can be tailored to meet the specific needs of the machinery or the manufacturer's specifications.
- Q: What are the different grades of steel used in coil manufacturing?
- There are several grades of steel used in coil manufacturing, including but not limited to, low carbon steel (e.g., ASTM A36), high carbon steel (e.g., ASTM A684), stainless steel (e.g., AISI 304), and galvanized steel (e.g., ASTM A653). These grades are chosen based on the desired properties and requirements of the coil being manufactured.
- Q: Climbing ropes used by mountaineers are usually made of nylon. Would steel cable of equal strength as the nylon be just as good? What advantages and disadvantages would it have compared to the nylon?
- steel is NOT as flexible and much slipperier if you fall the nylon stretches to slow the victim but a steel cable would stop short and kill you
- Q: How are steel coils used in the construction industry?
- Steel coils are used in the construction industry for various purposes, including the manufacturing of structural components such as beams, columns, and trusses. These coils are also utilized in the fabrication of roofing and cladding materials, as well as in the production of reinforcing bars for concrete structures. Additionally, steel coils are commonly employed in the construction of industrial buildings, bridges, and other infrastructure projects due to their strength, durability, and versatility.
- Q: How are steel coils used in the production of electrical resistors?
- Steel coils are used in the production of electrical resistors as the core material for winding wire around. The coils provide a stable structure, allowing the wire to be tightly wound and creating the necessary resistance for regulating electric current flow.
- Q: What are the applications of steel coils in automotive manufacturing?
- Steel coils have various applications in automotive manufacturing. They are used primarily for the production of car bodies, as well as for other components such as doors, hoods, fenders, and trunk lids. Steel coils provide high strength, durability, and formability, making them suitable for creating robust and safe vehicles. Additionally, they offer excellent resistance to corrosion and can be easily molded into complex shapes, ensuring the desired design aesthetics and functionality.
- Q: What are the different methods of forming steel coils into sheets?
- There are several methods of forming steel coils into sheets, each with its own advantages and applications. 1. Hot rolling: This is the most common method used to form steel coils into sheets. In this process, the steel is heated above its recrystallization temperature and then passed through a series of rollers. The rollers apply pressure to the heated steel, reducing its thickness and elongating it into a sheet. Hot rolling produces sheets with a smooth surface finish and is suitable for a wide range of applications. 2. Cold rolling: This method involves passing the steel coil through rollers at room temperature. Unlike hot rolling, cold rolling does not require heating the steel. The cold rolling process results in sheets with a higher dimensional accuracy and a smoother surface finish. Cold-rolled sheets are often used in applications where precise dimensions and a polished appearance are required, such as automotive body panels and appliances. 3. Annealing and pickling: This method involves subjecting the steel coil to a heat treatment process called annealing, followed by pickling. Annealing involves heating the steel to a specific temperature and then slowly cooling it, which helps to relieve stress and improve the material's mechanical properties. Pickling is the process of removing impurities and scale from the steel surface. These steps are typically performed before hot or cold rolling to ensure a high-quality end product. 4. Galvanizing: Galvanizing is a process that involves coating steel sheets with a layer of zinc to provide corrosion resistance. The steel coil is first cleaned and then immersed in a bath of molten zinc. The zinc adheres to the surface of the steel, forming a protective layer that prevents rust and corrosion. Galvanized sheets are commonly used in construction, automotive manufacturing, and electrical appliances. 5. Electro-galvanizing: This method is similar to galvanizing, but instead of immersing the steel coil in a bath of molten zinc, an electric current is used to deposit zinc onto the surface of the steel. Electro-galvanizing offers similar corrosion resistance to traditional galvanizing but with a thinner coating. It is often used in applications where a thinner, more lightweight sheet is desired. In summary, the different methods of forming steel coils into sheets include hot rolling, cold rolling, annealing and pickling, galvanizing, and electro-galvanizing. Each method has its own advantages and is suitable for different applications based on the required surface finish, dimensional accuracy, and corrosion resistance.
- Q: What are the common sizes of steel coils?
- The common sizes of steel coils vary depending on the specific needs and requirements of different industries. However, there are some standard sizes that are commonly used in the steel manufacturing and processing sectors. These include: 1. Slit Coils: Slit coils are typically smaller in size and are commonly available in widths ranging from 0.5 inches to 72 inches. The weight of slit coils varies, but it is usually between 1000 pounds to 50,000 pounds. 2. Master Coils: Master coils are larger in size and are typically used in steel processing facilities to produce various steel products. The width of master coils usually ranges from 36 inches to 96 inches, while the weight may vary from 5,000 pounds to 60,000 pounds. 3. Sheet Coils: Sheet coils are often used in construction, automotive, and appliance manufacturing industries. The standard sizes for sheet coils vary, but they are commonly available in widths of 48 inches, 60 inches, and 72 inches, with lengths ranging from 96 inches to 240 inches. 4. Plate Coils: Plate coils are primarily used in heavy-duty applications such as shipbuilding, bridge construction, and pressure vessel manufacturing. The sizes of plate coils are typically larger, with widths ranging from 36 inches to 96 inches, and lengths varying from 96 inches to 480 inches. It is important to note that these sizes are not fixed and can be customized based on specific customer requirements. Steel manufacturers and suppliers often have the capability to produce coils in various sizes to meet the diverse needs of their clients.
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prepainted Rolled Steel coil for Construction Roofing Constrution
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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