RAL Scale Prepainted Rolled Steel Coil for Construction Roof
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 28000 m.t./month
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OKorder Financial Service
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Structure of RAL Scale Prepainted Rolled Steel Coil for Construction Roof
Description of RAL Scale Prepainted Rolled Steel Coil for Construction Roof
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 RAL Scale Prepainted Rolled Steel Coil for Construction Roofg
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 RAL Scale Prepainted Rolled Steel Coil for Construction Roof
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 RAL Scale Prepainted Rolled Steel Coil for Construction Roof
Product | RAL Scale Prepainted Rolled Steel Coil for Construction Roof |
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 | 25MT max |
Export package | Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed |
FAQ of RAL Scale Prepainted Rolled Steel Coil for Construction Roof
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 color. And we could give more discount if you make big order like 1000 tons and more. Further more, the more appropriate payment term your can offer the better price we can provide.
2. How long can we receive the product after purchasing?
Usually within thirty working days after received 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 tension leveling for steel coils?
- There are various techniques available for tension leveling steel coils, each with its own benefits and applications. 1. Roller leveling: By passing the steel coil through a series of rollers under high tension, strategically positioned to exert pressure on the coil, this method effectively stretches and elongates the coil. It is commonly used for thinner gauge coils and effectively eliminates defects such as coil set, crossbow, and edge wave. 2. Stretch leveling: This technique involves subjecting the steel coil to a combination of tension and elongation. The coil is held by clamps at both ends and then stretched using hydraulic or mechanical devices. This process helps remove residual stresses, flatten the coil, and enhance shape control. Stretch leveling is particularly suitable for thicker gauge coils, effectively eliminating wavy edges and center buckle. 3. Temper rolling: By passing the steel coil through a series of temper rolls that apply pressure on the surface, this method is primarily used to improve the surface finish and enhance the mechanical properties of the steel. It also helps reduce coil set and improve flatness. 4. Skin pass rolling: After the primary leveling process, the steel coil is passed through a series of rolls that apply light pressure on the surface. This technique is typically performed to further improve surface finish, enhance flatness, and reduce surface defects such as scratches or marks. 5. Stretcher leveling: This technique involves clamping the steel coil at both ends and applying tension to stretch it. The stretched coil is then held in this position for a specific duration to allow for stress relief and shape correction. It is commonly used for thicker gauge coils and effectively removes defects like coil set, crossbow, and center buckle. Each tension leveling method offers distinct advantages and is suitable for different types of steel coils and specific requirements. The choice of method depends on factors such as coil thickness, desired flatness, surface finish, and the specific defects that need to be corrected.
- Q: What is the role of steel coils in the production of industrial machinery?
- Steel coils play a crucial role in the production of industrial machinery as they are the primary raw material used to manufacture various components, such as structural frames, gears, shafts, and panels. These coils are processed and shaped into the desired forms through cutting, bending, and welding processes to create strong and durable machinery. The high strength and versatility of steel make it ideal for withstanding heavy loads, high temperatures, and harsh operating conditions, ensuring the reliability and performance of industrial machinery.
- Q: What are the different types of steel coil loading and unloading methods?
- There are several different types of steel coil loading and unloading methods, including overhead crane loading and unloading, forklift loading and unloading, coil car loading and unloading, and conveyor loading and unloading. Each method has its own advantages and suitability depending on the specific requirements and constraints of the steel coil handling process.
- Q: How are steel coils used in the production of electrical conduits?
- Steel coils are used in the production of electrical conduits in several ways. Firstly, steel coils are used as the raw material for manufacturing electrical conduits. These coils are made of high-quality steel that is specially processed and formed into a long, continuous strip. Once the steel coils are obtained, they are fed into a machine called a slitter. The slitter cuts the coils into narrower strips of the desired width. These narrower strips will serve as the base material for the electrical conduits. The next step is to shape the steel strips into the desired conduit shape. This is done by passing the strips through a series of rollers and other shaping tools. The steel strips are gradually formed into the round or rectangular shape of the conduit. The rollers apply pressure and manipulate the steel strip until it reaches the desired shape. After the shaping process, the ends of the steel strips are welded together to create a continuous conduit. This welding process ensures that the conduit will have a seamless structure, which is important for its functionality and durability. Once the conduits are formed and welded, they undergo further processing to enhance their properties. This may include processes such as galvanizing, where the conduits are coated with a layer of zinc to protect them from corrosion. This additional layer provides the conduits with increased longevity, making them suitable for various electrical applications. In summary, steel coils are essential in the production of electrical conduits. The coils serve as the raw material that is shaped, welded, and processed to create the final product. The use of steel coils ensures that the electrical conduits are strong, durable, and capable of withstanding the demands of electrical installations.
- Q: How are steel coils inspected for surface cleanliness?
- Steel coils are inspected for surface cleanliness through various methods such as visual examination, ultrasonic testing, magnetic particle inspection, and eddy current testing. These techniques help identify any surface defects, contaminants, or irregularities on the steel coil, ensuring it meets the required cleanliness standards.
- Q: I have a set of Stainless steel pots and pans. Everything is sticks to them. What must I do so things don't stick?
- Stainless is great for many things but not so great for some others. Where you want sticking is when you saute meat. You want those crusty brown bits that when the pan is deglazed are the makings of a great sauce. Get yourself one or two non stick pans (preferably with a metal handle so it can go from stove top to oven). Use those where you wish to avoid sticking (like eggs / omelets, french toast or pancakes. Keep in mind that no one pan type is universally good for all types of cooking. My kitchen is mostly stocked with layered stainless steel. I have a few non-stick skillets, a carbon steel wok, a few cast iron skillets, an enameled cast iron dutch oven (le creuset), and a copper sauce pan. Each has its own use.
- Q: How do steel coils contribute to the water and wastewater industry?
- The water and wastewater industry heavily relies on steel coils as a crucial component for constructing and maintaining its infrastructure. These coils, made from high-quality steel, offer numerous advantages for the industry. To begin with, steel coils are essential in the production of pipes and tubes used primarily for transporting water and wastewater. Steel pipes are renowned for their exceptional strength and durability, enabling them to withstand high pressure and heavy loads. This makes them ideal for water distribution systems, sewage networks, and treatment plants. Steel coils provide the necessary material to manufacture these pipes, ensuring reliable and long-lasting infrastructure. Furthermore, steel coils are also utilized in constructing storage tanks and reservoirs. These tanks are vital for water treatment plants, serving as storage for large volumes of water or wastewater during the treatment process. Steel coils provide the required material for fabricating these tanks, guaranteeing their structural integrity and preventing leaks or contamination. Moreover, steel coils are used in manufacturing various equipment and components indispensable in the water and wastewater industry. For instance, steel coils are employed to produce pumps, valves, and control systems, which are crucial for the efficient operation of water treatment plants, pumping stations, and sewage networks. Steel's strength and corrosion resistance make it an ideal material for these applications, ensuring reliable and long-lasting equipment. Additionally, steel coils are also employed in constructing wastewater treatment plants and facilities. These plants employ various processes to eliminate contaminants from wastewater before discharging it into the environment. Steel coils provide the necessary material for constructing these facilities, including structural supports, tanks, and other components. The durability and resilience of steel ensure the longevity and efficiency of these treatment plants. In conclusion, steel coils play an integral role in the water and wastewater industry by contributing to the construction and maintenance of critical infrastructure. They are used in manufacturing pipes, tanks, equipment, and facilities, guaranteeing the strength, reliability, and durability required for the efficient operation of water and wastewater systems.
- Q: What are the different types of steel coil storage containers?
- There are several types of steel coil storage containers, including coil racks, coil cradles, coil saddles, coil chocks, and coil cassettes. These containers are designed to safely and efficiently store and transport steel coils of various sizes and weights, ensuring their protection and preventing damage during handling and storage.
- Q: How do steel coils contribute to strength and durability in manufacturing?
- Strength and durability in manufacturing are enhanced by steel coils in several ways. Firstly, steel possesses inherent strength due to its high tensile strength, enabling it to bear heavy loads and resist deformation. Coiling steel involves hot rolling or cold rolling, which further enhances its strength and durability. During hot rolling, steel is heated to high temperatures and passed through rollers to shape it into a coil. This process aligns the steel's grain structure, resulting in a more uniform material with reduced internal stresses. Consequently, it becomes stronger and more resilient, maintaining its structural integrity even during manufacturing processes like bending, stamping, and forming. In contrast, cold rolling involves passing steel through rollers at room temperature. This process not only increases strength and hardness but also improves the surface finish. Cold-rolled steel coils are known for their smooth and uniform appearance, making them ideal for applications where aesthetics are crucial. Moreover, steel coils can be coated with various protective layers to enhance durability. Coatings like zinc or polymer-based ones act as barriers against corrosion, moisture, and other environmental factors that can weaken the steel. By preventing rust and degradation, these coatings prolong the lifespan of steel coils and the products they are used in, making them more durable and cost-effective in the long term. In summary, steel coils contribute to strength and durability in manufacturing by providing a resilient material capable of withstanding heavy loads and resisting deformation. The hot rolling and cold rolling processes further enhance the steel's strength and uniformity, while protective coatings prevent corrosion and extend the coils' lifespan. Ultimately, steel coils are indispensable components in manufacturing, enhancing the strength and durability of a broad range of products.
- Q: How are steel coils used in the production of consumer goods?
- Steel coils are used in the production of consumer goods as raw materials for various manufacturing processes. They are often shaped, cut, or formed into different components and parts that go into products such as appliances, automobiles, furniture, and construction materials. Steel coils provide strength, durability, and versatility, making them essential in creating high-quality consumer goods.
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RAL Scale Prepainted Rolled Steel Coil for Construction Roof
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 28000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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