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.
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- Q:What are the different methods of coil joining for steel coils?
- There are several different methods of coil joining for steel coils, each with its own advantages and limitations. Some of the commonly used methods include: 1. Welding: This is one of the most popular methods of coil joining. It involves using heat to melt and fuse the edges of the steel coils together. Welding can be done using various techniques such as arc welding, resistance welding, or laser welding. It provides a strong and durable joint, but it can be time-consuming and may require skilled operators. 2. Mechanical fastening: This method involves using mechanical fasteners like clips, staples, or bolts to join the edges of the steel coils. Mechanical fastening is relatively quick and easy, and it allows for easy disassembly if required. However, it may not provide as strong a joint as welding and can be susceptible to loosening over time. 3. Adhesive bonding: Adhesive bonding involves using a suitable adhesive or glue to bond the edges of the steel coils together. This method provides a strong and uniform joint, and it can also help to seal and protect the joint from corrosion. However, adhesive bonding may require surface preparation and curing time, and it may not be suitable for high-temperature applications. 4. Interlocking or tongue-and-groove joints: This method involves shaping the edges of the steel coils in a way that they interlock or fit together like a puzzle piece. Interlocking joints provide good alignment and can be easily assembled and disassembled. However, they may not provide as strong a joint as welding or mechanical fastening. 5. Coil-overlapping: In this method, the edges of the steel coils are overlapped and clamped together using mechanical means. Coil-overlapping is a simple and cost-effective method, but it may not provide a strong joint and can result in uneven coil edges. It's important to consider factors such as the application requirements, strength requirements, cost, and production efficiency when choosing the appropriate method of coil joining for steel coils.
- Q:How are steel coils used in the production of telecommunications equipment?
- Steel coils are used in the production of telecommunications equipment for various purposes, such as creating structural components, housing enclosures, and mounting brackets. The steel coils are often shaped, cut, and formed into different parts that provide strength, durability, and support to the equipment. Additionally, steel coils may be used in the manufacturing of antennas, transmission towers, and other infrastructure elements that are crucial for telecommunications networks.
- Q:So finally got around to watching man of steelnow i heard a few times that batman was in iti didn't se him.in the film is it something subtle I've just missed or is he not in it?when i googled it got loads of results for them being together in the new film but nothing about man of steel 2013
- Zod okorder /
- Q:Can steel coils be used in electrical applications?
- Yes, steel coils can be used in electrical applications. Steel coils are often used as magnetic cores in transformers and inductors, which are essential components in electrical circuits. The steel used in these coils is typically a type of high-quality electrical steel that has specific magnetic properties, such as low core losses and high permeability. These properties allow the steel coils to efficiently transfer electrical energy between different components of the circuit. Additionally, steel coils can also be used in other electrical applications, such as in the construction of electric motors and generators. Overall, steel coils are widely utilized in electrical applications due to their magnetic properties and their ability to handle high currents and temperatures.
- Q:Why can't you use a lead shot only choke with steel shot or a steel shot only choke with lead shot? I have used a lead only choke with steel shot and my shotgun shot fine and there was no damage to the choke.
- The reasoning behind lead shot only is that those chokes (usually) have a very tight constriction. It can cause severe and dangerous pressure spikes when a charge of steel shot (almost impossible to compress compared to lead) gets slammed through them. Another reason could be that the tubes are either very soft steel or very thin and steel shot will damage them quickly. I personally haven't seen any steel shot ONLY tubes before just ones marked for lead and/or steel or ok for steel shot.
- Q:How are steel coils welded together?
- Steel coils can be welded together using various methods, depending on the specific requirements and the type of steel being used. One common method is the use of electric resistance welding (ERW), where an electric current is passed through the steel coils to generate heat. This heat melts the edges of the coils, and pressure is applied to join them together. ERW is a quick and cost-effective method for welding steel coils. Another method is high-frequency induction welding (HFIW), which is commonly used for thinner steel coils. In this process, an induction coil is used to generate an alternating magnetic field, which induces an electric current in the steel coils. The resistance of the coils to this electric current generates heat, causing the edges to melt and form a weld. For thicker and heavier steel coils, submerged arc welding (SAW) is often employed. This method involves the use of a granular flux and a continuous electrode, which is fed into the weld area. The flux melts, creating a protective shield for the weld pool, and the electrode melts to form the weld. SAW is a robust and efficient method for welding steel coils. Additionally, laser welding and gas metal arc welding (GMAW) can also be used to weld steel coils. Laser welding offers high precision and speed, while GMAW, also known as MIG welding, uses an electric arc between a consumable wire electrode and the steel coils to create a weld. Regardless of the welding method used, the key factors for successful welding of steel coils are proper preparation of the edges, maintaining the appropriate heat and pressure levels, and ensuring the correct welding technique is employed.
- Q:What are the common coil packaging materials?
- Common coil packaging materials include plastic wrap, stretch film, steel strapping, and wooden crates. These materials are used to protect and secure coils during storage and transportation, ensuring they remain intact and undamaged.
- Q:How are steel coils used in the manufacturing of garage doors?
- Steel coils are used in the manufacturing of garage doors as they are formed and shaped into panels, which provide strength and durability to the doors. The coils are cut and rolled into specific dimensions, then coated with protective layers to enhance corrosion resistance. These panels are then assembled to create the sections of the garage door, ensuring a sturdy and long-lasting product.
- Q:How are steel coils inspected for quality assurance?
- Steel coils are inspected for quality assurance through a rigorous process that involves various tests and checks. Firstly, visual inspection is conducted to look for any surface defects such as scratches, dents, or rust. This ensures that the coils are in good condition and free from any obvious flaws. Next, dimensional inspection is performed to verify the dimensions and tolerances of the coils. This involves measuring the width, thickness, and length of the coils to ensure they meet the specified requirements. Any deviations from the standard dimensions are noted and addressed. Additionally, mechanical testing is carried out to assess the strength and durability of the steel coils. This includes conducting tensile tests to measure the strength and elasticity of the steel, as well as impact tests to evaluate its ability to withstand sudden loads or shocks. Furthermore, chemical analysis is conducted to determine the composition and purity of the steel. This involves taking samples from the coils and analyzing them in a laboratory to check for the presence of any impurities or elements that may affect the quality of the steel. To ensure the coils meet specific industry standards, non-destructive testing methods such as ultrasonic testing or magnetic particle inspection may be employed. These techniques allow for the detection of internal defects or irregularities that may not be visible to the naked eye. In addition to these tests, the coils may undergo surface treatment inspections, such as galvanization or coating checks, to ensure the protective layers are applied correctly and meet the required specifications. Overall, steel coil inspection for quality assurance involves a combination of visual, dimensional, mechanical, chemical, and non-destructive testing methods. These comprehensive inspections help to ensure that the steel coils meet the necessary quality standards and are suitable for their intended applications.
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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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