Pre-painted Rolled Steel Coil for Construction Roofing
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 25 m.t./month
OKorder Service Pledge
OKorder Financial Service
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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 is the densest type of steel ? what is its density ?what is its tensile strength .
- Agree okorder . If you are really looking for higher density, go to copper or tungsten.
- Q:I was cutting a sheet of steel with an angle grinder when suddenly the rate at which the blade was cutting slowed way down. I tried a few different things, and turned off the tool and looked at the blade. It didn't look damaged, but it definitely was not cutting as quickly. I thought either I had hit a harder section of steel (is that possible? It looked pretty uniform) or the blade had lost it's abrasive quality or something. Also, before this happened I had accidentally cut into the wooden sawhorse that was holding up the steel sheet, but I've done that before with no problem. After a short while the problem fixed itself and the rate of cutting went back to a fast normal. Anyone know why this happened?
- Sounds like the abrasive surface got blinded, coated with something that prevented the abrasive particles from touching the steel. It is possible to have vastly different hardnesses in a single piece of steel. Case hardening, carburizing, induction hardening, heat affected zone from welding, differences in work hardening, and presence of inclusions are some of the things that can create hardness variation within a single piece. But... sounds like you are working with a sheet which is unlikely to have any of these conditions. So... it was probably the grinding disk
- Q:How are steel coils used in the production of appliances?
- Steel coils are used in the production of appliances as a primary material for constructing the various components, such as the outer shells, frames, and internal structures. The coils are processed and shaped into specific sizes and forms to meet the requirements of different appliances. Additionally, steel coils provide strength, durability, and a sleek appearance to the finished appliances.
- Q:What is the shelf life of steel coils?
- Various factors, such as the type of steel, its specific application, and the storage conditions, can affect the shelf life of steel coils. Generally, steel coils have a lengthy shelf life due to their durability and resistance to corrosion. When stored correctly in a dry and controlled environment, steel coils can maintain their quality for many years. It is important to consider that certain types of steel, like galvanized steel, may have a shorter shelf life if the protective coating is compromised and corrosion occurs. Additionally, exposure to extreme weather conditions, high humidity, or chemicals can reduce the shelf life of steel coils. To ensure the longevity of steel coils, it is advisable to store them in a covered area to protect them from moisture and direct sunlight. Proper stacking and handling techniques should also be employed to prevent any damage that could lead to premature deterioration. In conclusion, the shelf life of steel coils can vary, but with appropriate storage and handling, they can remain in good condition for an extended period. This makes them a reliable and long-lasting material for various applications.
- Q:How do steel coils resist corrosion?
- Steel coils resist corrosion through a combination of factors including the presence of protective coatings, the use of corrosion-resistant alloys, and proper handling and storage practices. The most common method to prevent corrosion in steel coils is the application of protective coatings such as zinc, known as galvanization. This process forms a barrier between the steel and its environment, preventing exposure to moisture and corrosive elements. The zinc coating acts as a sacrificial layer, corroding in place of the steel. Another method to enhance corrosion resistance is the use of corrosion-resistant alloys, which are specifically designed to withstand harsh environments. These alloys contain elements such as chromium, nickel, or molybdenum, which form a passive oxide layer on the surface of the steel, protecting it from corrosion. Proper handling and storage practices also play a crucial role in preventing corrosion. Steel coils should be stored in a dry and well-ventilated area to minimize exposure to moisture. They should be protected from contact with other metals and materials that may cause galvanic corrosion. Regular inspection and maintenance are also important to identify and address any signs of corrosion early on. In summary, steel coils resist corrosion by utilizing protective coatings, corrosion-resistant alloys, and proper handling and storage practices. These measures work together to prolong the lifespan of steel coils and ensure their durability in various environments.
- Q:How do steel coils contribute to energy efficiency in transportation?
- Steel coils contribute to energy efficiency in transportation in several ways. Firstly, steel coils are lightweight and have a high strength-to-weight ratio. This means that less steel material is required to carry the same load compared to other materials, such as wood or concrete. As a result, the overall weight of the transport vehicle is reduced, which leads to lower fuel consumption and emissions. Secondly, steel coils are highly durable and can withstand harsh conditions during transportation. They have excellent resistance to corrosion, impact, and fatigue, ensuring a longer lifespan for the transport vehicle. This durability reduces the need for frequent repairs or replacements, resulting in reduced energy consumption and material waste. Furthermore, steel coils are easy to handle and transport. They can be easily loaded and unloaded from trucks, trains, or ships due to their compact and standardized size. This efficiency in handling reduces the time and energy required for loading and unloading operations, thereby increasing overall transportation efficiency. Additionally, steel coils can be efficiently stacked and stored, maximizing the use of available space in transport vehicles. This reduces the number of trips required to transport the same amount of goods, resulting in less energy consumption and lower transportation costs. Lastly, steel is a highly recyclable material. At the end of their life cycle, steel coils can be easily recycled and used to produce new steel products. This reduces the demand for raw materials and the energy required for manufacturing new products, contributing to overall energy efficiency in transportation. In conclusion, steel coils contribute to energy efficiency in transportation through their lightweight, durable, easy-to-handle, and recyclable nature. These characteristics result in reduced fuel consumption, lower emissions, decreased maintenance needs, efficient use of space, and reduced material waste, all leading to a more sustainable and energy-efficient transportation system.
- Q:I have a need to connect various stainless steel tubes and fitting together and was wondering how to do it. I know a TIG welder is an option but have heard rumors that there is a way to solder it in much the same way you affix copper pipe. Perhaps with higher heat and different flux. I need step by step and maybe suppliers of the materials. Thanks in advance and please I do not need the call a plumber answers as I've gotten in the past
- ss has to be either welded or brazed you can [solder ] it but it has to be a silver solder, and will not have any strength
- Q:How are steel coils used in the production of HVAC ductwork?
- Due to their durability and strength, steel coils find widespread use in the production of HVAC ductwork. Galvanized steel is typically used to make these coils, as it offers protection against corrosion and extends the lifespan of the ductwork. To initiate the manufacturing process, the steel coils are unrolled and cut to the desired length. Subsequently, they are passed through a machine that shapes the steel into either a rectangular or round duct form. This shaping process employs various techniques like roll forming or press braking. Once the steel has taken the desired duct shape, it is joined together using different methods such as welding or locking mechanisms. Rectangular ducts are commonly welded, while round ducts often incorporate locking mechanisms like snap locks or Pittsburgh seams. These joining techniques ensure the ductwork is secure and airtight. Following the assembly of the ductwork, additional processes like insulation or lining may be applied. Insulation aids in minimizing heat loss or gain, while lining improves the acoustic properties of the ductwork. These supplementary steps are often undertaken to comply with specific requirements or regulations. In conclusion, steel coils are essential in the production of HVAC ductwork due to their strength, durability, and corrosion protection. Steel's versatility allows for the fabrication of ductwork in various shapes and sizes, making it a popular choice for HVAC systems.
- Q:How are steel coils used in the manufacturing of garage doors?
- Steel coils are used in the manufacturing of garage doors as they provide the necessary strength and durability required for the door panels. These coils are formed into various shapes and sizes to create the panels, which are then coated and insulated to enhance their performance and appearance. The use of steel coils ensures that the garage doors are sturdy, long-lasting, and able to withstand the daily wear and tear associated with regular use.
- Q:How are steel coils processed for specific applications?
- Steel coils are processed for specific applications through a series of steps including cleaning, annealing, cold rolling, and coating. Cleaning removes any impurities from the surface of the steel, while annealing improves its ductility and strength. Cold rolling reduces the thickness and improves the surface finish of the steel, making it suitable for various applications. Finally, coating is applied to enhance corrosion resistance or to provide specific aesthetic properties.
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Pre-painted Rolled Steel Coil for Construction Roofing
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 25 m.t./month
OKorder Service Pledge
OKorder Financial Service
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