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 coil packaging methods used for steel coils?
- Steel coils can be packaged using various methods to guarantee their protection and secure transportation. These methods also help optimize storage space. Some of the commonly used packaging methods for steel coils are as follows: 1. Strapping: Metal or plastic straps are used to secure the steel coils. This ensures stability and prevents unrolling or shifting during transportation. Strapping is suitable for smaller coils or when other packaging methods are also utilized. 2. Stretch wrapping: Steel coils are tightly wrapped using a stretch film. This technique provides excellent protection against dust, moisture, and other contaminants. It also keeps the coils tightly bound and prevents movement during handling and transportation. 3. Steel banding: Steel bands or straps are employed to secure the coils. This packaging method offers superior strength and durability. It is ideal for larger and heavier steel coils that require additional reinforcement. 4. Wooden crating: Particularly large or heavy steel coils are packaged in wooden crates. These crates provide enhanced protection against impacts, moisture, and other external factors. Wooden crating is commonly used for long-distance transportation or when coils need to be stored for extended periods. 5. Coil saddles: Specialized devices called coil saddles are used to package large coils securely. These devices prevent rolling or movement. Coil saddles are preferred when strapping or wrapping is not feasible. 6. Paper interleaving: Sheets of paper are placed between each layer of steel coils to prevent damage caused by friction. This method is commonly used for coils with a high surface finish or those susceptible to scratching. Each of these packaging methods offers distinct advantages and is chosen based on factors such as coil size, weight, transportation requirements, and desired level of protection. By employing these methods, steel coil manufacturers and distributors can ensure the safe arrival of their products in optimal condition.
- Q: How are steel coils inspected for surface cleanliness after processing?
- Steel coils are inspected for surface cleanliness after processing through various methods such as visual inspection, magnetic particle inspection, and fluorescent penetrant inspection. These techniques help identify any surface defects, contaminants, or impurities on the steel coils, ensuring their quality and suitability for further use or shipment.
- Q: What is the size range of steel coils?
- The size range of steel coils can vary depending on the specific application and industry. Generally, steel coils come in a wide range of sizes to accommodate different needs. The width of steel coils can range from as narrow as a few inches to as wide as several feet. Similarly, the thickness of steel coils can vary from very thin gauges, such as 0.005 inches, to thicker gauges exceeding 0.5 inches. The length of steel coils is typically determined by the manufacturing process, but it can be customized to meet specific requirements. Overall, the size range of steel coils is quite extensive, allowing for flexibility and adaptability in various industries, such as automotive, construction, and manufacturing.
- Q: What are the different methods of welding steel coils?
- There are several methods of welding steel coils, including MIG (Metal Inert Gas) welding, TIG (Tungsten Inert Gas) welding, and resistance welding. MIG welding uses a consumable electrode wire and an inert gas as a shielding medium to create an arc and join the coils. TIG welding, on the other hand, uses a non-consumable tungsten electrode and a separate filler material to create the weld. Resistance welding involves applying pressure and passing an electric current through the coils to create a weld. Each method has its advantages and is chosen based on factors such as the type and thickness of the steel, desired quality, and production requirements.
- Q: is cold roll or hot roll mill roller is cast steel? or cast iron?
- Casting is a process of forming a part just like forging or rolling are also processes of forming steel. Cast steel can be any grade of steel poured into a sand mold to form a part like a water pump housing in your car. To be classified as steel, the mixture usually contains less than 2% carbon. Cast iron is a mixture that generally contains more than 2% carbon. It also can be poured into a sand mold. There are many grades of iron. Many metals can be cast into shapes like the air intake plenum on your car is probably cast aluminum. Bronze statues are made by pouring molten bronze into a mold. The process used to create a part has an effect of that part's mechanical properties. A casting is weaker than a forging but certain parts cannot be formed by forging. The large diameter rolls used in steel mills to roll steel into thinner plates or sheets is a hot rolled steel that has probably been forged into shape then machined into the final diameter. Some rolls are fabricated from hot rolled steel plates into shape. This allows the ability to add internal cooling paths to keep the roll from overheating.
- Q: For robotics homework, I need to find out how steel is galvanized and why. I researched a little bit, and I'm not sure I grasp the entire concept. Simple words would be helpful :) Thank you!!!
- Steel can be galvinised by electroplating process. Galvinising means providing a zinc coating on steel surface. It protects the material from rusting and loosing the shinining.
- Q: Are steel coils recyclable?
- Yes, steel coils are recyclable. Steel is one of the most commonly recycled materials in the world. Coils made of steel can be easily melted down and used to produce new steel products, making them a valuable resource for recycling.
- Q: Can steel coils be used in the automotive industry?
- Yes, steel coils can be used in the automotive industry. Steel coils are commonly used in the manufacturing of various automotive components and parts. They are particularly suitable for applications that require high strength and durability, such as body panels, chassis components, suspension parts, and engine components. Steel coils provide excellent structural integrity, corrosion resistance, and impact resistance, which are crucial characteristics for automotive applications. Additionally, steel coils can be easily formed and shaped into the desired dimensions, making them highly versatile and cost-effective for automotive manufacturers. Overall, steel coils are widely utilized in the automotive industry due to their exceptional mechanical properties and suitability for various automotive applications.
- Q: I know copper pots are supposed to be really good for cooking with, and I have been looking around online. One thing I don't want to do, however, is send them in to be re-lined with tin. So I was wondering if stainless steel lined copper pots work as well as the traditional tin lined ones, or if those make the copper just for looks.
- Stainless steel is durable and does not disolve and make things taste funny. Stainless steel is not a good conductor of heat, so it has hot and cold spots. Copper is very good conductor. They noe bond copper to stainless steel to get the best features of each. Some pots just have a very thin copper plating to fool you. A good pot will be heavier, It is really hard to tell from looking.if it is plating or a bonded layer of copper. the thicker the better
- Q: what is the porpose of preheating mild steel prior to welding
- ok dont listen to bob the builder down there, u preheat thicker steels to draw moisture out of them. take a propane torch to something exposed to just atmospheric air around 3 inches thick and the water will literally pour out of it. do u want that in ur weld? no. so u preheat to draw any moisture or contaminates out of the base metal. good luck.
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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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