Prepainted Rolled steel Coil for Construction Roofing
- 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: How are steel coils processed for slitting or edge trimming?
- Steel coils are processed for slitting or edge trimming by first being unwound from the coil and passed through a series of rollers to ensure a smooth and uniform surface. The coil is then cut into narrower strips using a slitting machine or trimmed along the edges to remove any imperfections or excess material. This process helps create precise and customized steel strips that can be used for various applications.
- Q: What are the main characteristics of galvanized steel coils?
- The main characteristics of galvanized steel coils include a protective zinc coating that prevents corrosion, high strength and durability, excellent formability and weldability, and a smooth and shiny surface finish.
- Q: What are the challenges in coil recoiling for high-strength steel?
- One of the main challenges in coil recoiling for high-strength steel is the control and management of residual stresses. High-strength steel has a tendency to retain significant levels of residual stresses, which can lead to coil distortion or springback during recoiling. This requires careful process optimization and control to minimize these effects. Additionally, the high strength of the steel can make it more susceptible to cracking or damage during recoiling, necessitating precise handling techniques and equipment. Overall, the challenges lie in achieving uniform coil geometry, minimizing residual stresses, and avoiding any potential damage to the high-strength steel during the recoiling process.
- Q: What are the different methods of tension leveling for steel coils?
- There are several methods of tension leveling for steel coils, each with its own advantages and applications. 1. Roller leveling: This method involves passing the steel coil through a series of rollers under high tension. The rollers are strategically positioned to apply pressure on the coil, effectively stretching and elongating it. Roller leveling is commonly used for thinner gauge coils and is effective in removing coil set, crossbow, and edge wave defects. 2. Stretch leveling: In this method, the steel coil is subjected to a combination of tension and elongation. The coil is gripped by clamps at both ends and then stretched using hydraulic or mechanical devices. This process helps to remove residual stresses, flatten the coil, and improve shape control. Stretch leveling is particularly suitable for thicker gauge coils and can effectively eliminate wavy edges and center buckle. 3. Temper rolling: This method involves passing the steel coil through a series of temper rolls, which apply pressure on the surface of the coil. Temper rolling is primarily used to improve the surface finish of the steel and enhance its mechanical properties. It can also help to reduce coil set and improve flatness. 4. Skin pass rolling: In this method, the steel coil is passed through a series of rolls that apply a light pressure on the surface. Skin pass rolling is typically performed after the primary leveling process to further improve surface finish, enhance flatness, and reduce surface defects such as scratches or marks. 5. Stretcher leveling: This method involves clamping the steel coil at both ends and then applying tension to stretch it. The stretched coil is then held in this position for a period of time to allow for stress relief and shape correction. Stretcher leveling is commonly used for thicker gauge coils and can effectively remove coil set, crossbow, and center buckle. Each of these tension leveling methods offers unique 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: Is it just because brass is reloadable? But what makes it reloadable? What does brass bring to the equation that the steel cased ammo can't do?
- When 9mm was short I bought some steel Tula ammo, it was cheap and available. When at the range I was shooting it and it sounded different and felt different, way less kick. So I loaded up a mix of Tula and some Federal. Big difference between them. I also had failure to eject on the steel, then put brass in and did not have that problem. I do not buy cheap steel ammo anymore.
- Q: What are steel coils used for?
- Steel coils are used in a wide range of industries and applications, including manufacturing, construction, automotive, and appliances. They are commonly used in the production of various metal products such as pipes, tubes, sheets, and wires. Steel coils provide strength, durability, and versatility, making them essential in many industrial processes.
- Q: What are the dimensions of steel coils used in the power generation industry?
- The specific application and requirements determine the varying dimensions of steel coils used in the power generation industry. Generally, there is a wide range of sizes and thicknesses available for power generation steel coils. For power generation purposes, the width of steel coils can range from a few inches to several feet, depending on the intended equipment or machinery. These coils are specifically designed to fit manufacturing processes or components within power generation systems. The thickness of steel coils used in power generation can vary greatly. Thicker coils are commonly used for heavy-duty applications that require increased strength and durability. On the other hand, thinner coils may be suitable for less demanding tasks or when reducing weight is a priority. Furthermore, the weight of steel coils for power generation can vary based on their dimensions and the specific steel material used. Consideration of weight is crucial during transportation, installation, and handling of the coils. It is worth noting that manufacturers in the power generation industry can customize the dimensions of steel coils to meet specific project requirements. They work closely with power generation companies to understand their needs and offer tailored solutions that meet their dimensional specifications.
- Q: I made a wood crossbow body but all I need is a bow which I want to be metal. I've used a thin steel sheet that I cut to appropriate size but when it bent with the string strung, it never went to original shape after being shot. I used a slightly thicker and it wouldn't bend at all. Anybody know what thickness and type to use? Any real answers are very appreciated. Thanks.
- You are trying to use plain carbon steel which only can be bent a little bit if it is to return to its original shape. You have to use spring steel or high carbon steel that is intended to be bent a lot and still recover to its original shape. Most people making crossbows with metal bows get a piece of steel from a leaf spring of a vehicle and grind it to shape. A steel bow cross bow almost always needs a very strong trigger mechanism and a miniature wench to pull the steel bow string into position. You might be better off making the bow of wood.
- Q: i have recently gotten into DIY and am planning on making my own knife. My question is what kind of steel would be good to use for heat treating if i plan on using water and not oil in the process.
- Go to junkyard get old leaf spring, cut out knife, start sharpening. Why waste time heat treating steel when the spring steel as already be done.
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Prepainted Rolled steel Coil for Construction Roofing
- 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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