Prepainted Rolled Steel Coil for Construction Roofing Use
- 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: Why does steel with several composites have a greater hardenability from quenching than low carbon steel alloys?Any help would be great
- Bit tricky to explain and I don't know muh about it but steel on its own has lost of gaps in it ( the molecular structure) and when carbon is added thos gaps are filled, I think of it like this: it is easier to punch through expanded polystyrene( with all the little balls) than unexpanded(just a lump of plastic) as the balls are not properly joined and have air pockets between them.
- Q: How are steel coils used in the production of agricultural systems?
- Due to their durability and strength, steel coils are frequently employed in the production of agricultural systems. Specifically, these coils are commonly utilized in the creation of machinery and equipment essential for agricultural operations. One prevalent use of steel coils lies in the manufacture of farming machinery such as tractors, plows, and cultivators. These machines necessitate robust components capable of enduring the challenging conditions present in the agricultural environment. Steel coils are employed to fabricate the frames, chassis, and other structural parts of these machines, providing the necessary strength and support. Additionally, steel coils are employed in the creation of irrigation systems, which play a crucial role in efficient water management within agriculture. These coils are employed in the construction of pipes, valves, and fittings, ensuring the durability and long-lasting nature of the irrigation system. Furthermore, steel coils are employed to fabricate storage tanks and silos, which serve as vital tools for storing and preserving agricultural products like grains, seeds, and fertilizers. Moreover, steel coils find application in the construction of greenhouses and agricultural buildings. These coils are used to fabricate the structural framework, providing stability and resistance against environmental factors. Steel coils are also employed in the production of fencing and enclosures to safeguard crops and livestock from external threats. In conclusion, steel coils play a significant role in the production of agricultural systems by delivering the necessary strength, durability, and stability required for farming machinery, irrigation systems, storage facilities, and agricultural structures. Their utilization ensures that these systems can withstand the demanding conditions of the agricultural industry and contribute to efficient and sustainable farming practices.
- Q: What are the quality control measures for steel coils?
- Quality control measures for steel coils typically include various checks and inspections throughout the production process. These measures may include dimensional checks to ensure the coils meet specified thickness, width, and length requirements. Visual inspections are also conducted to identify any surface defects such as scratches, dents, or rust. Additionally, destructive and non-destructive tests like tensile strength, hardness, and ultrasonic testing are performed to assess the mechanical properties and internal quality of the steel coils. These quality control measures aim to ensure that the steel coils meet the required standards and are fit for their intended applications.
- Q: What are the common applications of pre-painted steel coils?
- Pre-painted steel coils, also referred to as pre-coated steel coils or color coated steel coils, are extensively utilized in a multitude of industries due to their versatility and endurance. The following are some of the prevalent uses of pre-painted steel coils: 1. Construction: In the construction sector, pre-painted steel coils are widely employed for roofing, wall cladding, and building panels. The array of colors available in pre-painted steel coils enables architects and designers to fashion visually pleasing structures. 2. Automotive: The automotive industry relies on pre-painted steel coils for fabricating car bodies, interior panels, and various other components. The corrosion resistance and superb finish provided by pre-painted steel coils make them the preferred choice in this field. 3. Appliances: Household appliances such as refrigerators, washing machines, and air conditioners incorporate pre-painted steel coils for their outer panels. The appealing colors and textures offered by pre-painted steel coils enhance the appearance of these appliances. 4. Electronics: The electronics industry also employs pre-painted steel coils for manufacturing cabinets and casings of electronic devices such as computers, televisions, and audio systems. The protective coating on pre-painted steel coils shields the electronic components from environmental factors. 5. Furniture: Pre-painted steel coils are utilized in the furniture industry for producing cabinets, shelves, and similar products. The extensive range of colors and finishes available in pre-painted steel coils enables furniture manufacturers to create visually appealing and long-lasting goods. 6. Signage and Advertising: In the signage and advertising sector, pre-painted steel coils are commonly used for manufacturing display boards, billboards, and signs. The vibrant colors and weather-resistant properties of pre-painted steel coils make them suitable for outdoor use. 7. Industrial Equipment: Pre-painted steel coils are employed in the manufacture of industrial equipment such as storage tanks, HVAC systems, and machinery components. The corrosion resistance and high strength of pre-painted steel coils make them suitable for these demanding applications. In conclusion, pre-painted steel coils find a wide range of applications in industries such as construction, automotive, appliances, electronics, furniture, signage, and industrial equipment. Their endurance, resistance to corrosion, and aesthetic appeal make them a popular choice for manufacturers in various sectors.
- Q: What are the different methods of coil welding for steel coils?
- There are several different methods of coil welding for steel coils, including resistance welding, laser welding, and induction welding. Resistance welding involves applying pressure and passing an electrical current through the coils to create a weld. Laser welding utilizes a high-powered laser beam to melt and fuse the edges of the coils together. Induction welding involves using electromagnetic fields to heat and fuse the coils. Each method has its own advantages and is chosen based on the specific requirements of the application.
- Q: How are steel coils inspected for camber using laser profiling?
- Steel coils are inspected for camber using laser profiling, which is a non-contact measurement technique. Laser profiling involves the use of a laser beam that is emitted onto the surface of the steel coil. As the laser beam moves across the coil, it creates a profile of the coil's surface, capturing precise measurements. To inspect for camber, the laser profiling system scans the entire length and width of the coil, capturing data points at regular intervals. These data points are then analyzed to determine the deviation from a straight line, which indicates the presence of camber. During the inspection process, the laser profiling system compares the measured profile of the steel coil to a reference profile, which represents an ideal or straight surface. The deviation between the measured profile and the reference profile is calculated, and if this deviation exceeds a predetermined threshold, the coil is flagged as having camber. Laser profiling offers several advantages for inspecting steel coils for camber. Firstly, it provides a non-contact measurement, eliminating the need for physical contact with the coil and reducing the risk of damage. Additionally, laser profiling is highly accurate, capable of capturing even small deviations in the coil's surface. This ensures that camber is detected reliably, allowing for necessary corrective actions to be taken. Overall, the use of laser profiling for inspecting steel coils for camber ensures efficient and accurate detection of this defect, enabling manufacturers to maintain high-quality standards and deliver reliable products to customers.
- Q: What are the common surface defects in steel coils?
- Steel coils commonly have surface defects, including scratches, pits, indentations, stains, and rust spots. Scratches may occur due to mishandling or processing, and their depth and length can vary. Pits are small depressions caused by impurities in the steel or during manufacturing. Indentations are similar but larger and more noticeable. Stains can result from chemicals, water, or other contaminants coming into contact with the steel. Rust spots form when the steel is exposed to moisture or corrosive elements, leading to iron oxide formation. These defects can impact the appearance, quality, and performance of the steel, necessitating their resolution to ensure the intended use of the coils.
- Q: How are steel coils used in the manufacturing of signage?
- Steel coils are used in the manufacturing of signage as a key material for creating the durable and rigid frames that hold and support the sign panels. These coils are typically cut, shaped, and welded into the desired frame structure, providing strength and stability to the signage.
- Q: What is the maximum stacking height for steel coils?
- The maximum stacking height for steel coils depends on various factors such as the weight and size of the coils, the strength of the supporting structure, and the safety regulations and guidelines in place. It is recommended to consult the manufacturer's specifications and industry standards to determine the appropriate maximum stacking height for steel coils in a specific situation.
- Q: Which of the two are better for exhaust manifolds, im guessing the stainless steel right?
- Cast iron. That's what OEMs use obviously it's better. Bring on the Thumbs Down from the peanut gallery.
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Prepainted Rolled Steel Coil for Construction Roofing Use
- 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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