Al-Zinc Coated Steel Coil for construction roof
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 30000 m.t./month
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Structure of Al-Zinc coated steel coil
Description of Aluminum Zinc Rolled Coil
The detailed information for the Al-Zinc coated steel coil is as following and it is mainly using for roofing producing, making ceiling grid and all kinds of roll forming structure.
Thickness: 0.20mm to 1.20mm
Width: 914mm, 1000mm, 1200mm, 1219mm and 1250mm, or slit narrow strip according to customer request, can be slit from 20mm to 610mm.
Coil ID: 508mm
Coil weight: 3 tons to 6 tons
Thickness tolerance: +/- 0.02mm or according to customer request.
Main Feature of Al-Zinc coated steel coil
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 Al-Zinc coated steel coil
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 Al-Zinc coated steel coil
Prepainted galvanized steel coil ( PPGI ) | Prepainted galvalume steel coil ( PPGL ) | |
Standard | JIS G3312 CGCC | J IS G3322 CGLCC |
Valid thickness | 0. 16 ~1. 2 0mm | 0. 16 ~1. 2 0mm |
Coil width | 600~1250mm | 600~1250mm |
Coil ID | 508mm & 610mm | 508mm & 610mm |
Coil weight | 3~5 tons | 3~5 tons |
Coating | 4 0~275 g/m2 | AZ30 to AZ150 |
Paint t hickness , top side | 15~25 microns | 15~25 microns |
P aint t hickness , reverse | 5~7 microns or 15~25 microns | 5~7 microns or 15~25 microns |
Color | any RAL code | any RAL code |
Package | vertical, eye to sky & horizontal | vertical, eye to sky & horizontal |
MOQ | 25 tons | 25 tons |
FAQ of Al-Zinc coated steel coil
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:i have purchased a high dollar Martin guitar and i was wondering if there are many people out there that have used steel string acoustics for classical and flamenco guitar playing.otherwise i will need a nylon stringeror.. uld i put nylon strings on an old yamaha steel string guitar that i have?
- If the guitar was designed for nylon strings, then don't put steel strings on it!
- Q:what is the porpose of preheating mild steel prior to welding
- For most mild steel, it is not necessary to preheat the steel, even in thick sections. Preheating, as well as maintaining interpass temperatures is sometime used when welding high-strength or high-performance steels. This reduces the likelihood of weld cracks. Mild steel is ductile enough that weld cracks aren't usually a problem. Preheating reduces the speed at which the weld cools and solidifies. in high-strength steels, this produces a more ductile microstructure in the weld and heat affected zone, thus reducing the possibility of hot and cold cracks. This also may improve some of the mechanical properties of the H.A.Z., such as impact toughness. The slower cooling rate allows more time for hydrogen to diffuse out of the weld, reducing the potential for hydrogen embrittlement. Hydrogen is produced when water vapor reacts with the steel at high temperatures, producing iron oxide and hydrogen gas. Some steels can be damaged by even relatively small amounts of hydrogen. Electrodes used in flux core arc welding and in shielded metal arc welding often contain fluxes which tend to absorb moisture from the air. Also, rust and mill scale contain water molecules which are chemically bound to the iron atoms. Note that hydrogen embrittlement is generally not an issue with mild steel, due to it's low carbon and alloy content. Preheating also reduces shrinkage stresses, due to the slower cooling rate. This is beneficial in parts which are heavily restrained, or where distortion is a particular concern.
- Q:I want to know what to my wash stainless fridge door with before applying the stainless steel polish.
- if you first wash it with hot soapy water to get rid of any grease. Then make a solution of vinegar and water in a spray, spray the solution onto stainless steel, wipe down, then polish dry with a clean cloth, you will not need stainless steel polish as it will come up lovely and clean and shiny.
- Q:What are the disadvantages of using steel coils?
- One of the main disadvantages of using steel coils is their weight, which can make transportation and handling more challenging and costly. Additionally, steel coils are prone to corrosion if not properly coated or protected, which can negatively impact their lifespan and performance. Another downside is their limited flexibility and difficulty in shaping, which may restrict their application in certain industries. Lastly, steel coils can be expensive to produce and acquire, making them less cost-effective compared to alternative materials in some cases.
- Q:How are steel coils inspected for elongation?
- Elongation inspections of steel coils involve various methods. One commonly used technique entails employing a tensile testing machine. This method entails extracting a small sample from the steel coil and inserting it into the machine. Subsequently, the machine exerts a pulling force on the sample until it fractures. The force required to cause the sample to break is measured, and this data is utilized to determine the elongation of the steel coil. Ultrasonic testing represents another approach adopted to inspect steel coils for elongation. In this method, high-frequency sound waves are transmitted through the steel coil. Through the analysis of the sound wave reflections, it becomes feasible to ascertain the elongation and other characteristics of the steel coil. Visual inspection also holds significant importance in the examination of steel coils for elongation. Trained technicians visually scrutinize the steel coils for any indications of stretching or deformation, which may indicate excessive elongation. In conclusion, a comprehensive inspection of steel coils for elongation and adherence to industry standards entails a combination of mechanical testing, ultrasonic testing, and visual inspection. This approach ensures the quality and compliance of the steel coils.
- Q:What are the challenges in coil leveling for high-strength steel?
- Achieving optimal results in coil leveling for high-strength steel involves addressing several challenges. The steel's inherent hardness and strength present one of the main obstacles. High-strength steel is designed with enhanced mechanical properties, including tensile strength and hardness, making it difficult to deform and shape. To overcome the steel's high-strength nature, specialized leveling equipment is needed. This equipment must exert sufficient force to counter the steel's resistance to deformation. This may involve using stronger and more durable leveling rollers or increasing the pressure applied during the leveling process. Failing to apply the appropriate force can result in incomplete leveling, leading to residual stress and dimensional inaccuracies in the final product. Another challenge in coil leveling for high-strength steel is the potential for springback. Springback refers to the material's tendency to return to its original shape after being deformed. High-strength steel is especially prone to springback due to its higher elastic modulus. This can result in uneven leveling and dimensional variations in the coil. To mitigate springback, advanced leveling techniques can be utilized. These techniques include overbending and pre-bending the steel. Overbending involves bending the steel beyond the desired level, allowing it to spring back to the desired shape. Pre-bending, on the other hand, involves intentionally bending the steel in the opposite direction before leveling it, counteracting the effects of springback. These techniques require precise control and expertise to ensure accurate leveling. Additionally, high-strength steel often has a more pronounced yield point. The yield point is the stress level at which permanent deformation occurs. This can make it challenging to achieve consistent and uniform leveling throughout the coil. Proper adjustment of the leveling equipment and careful monitoring of the leveling process are necessary to effectively address this challenge. Furthermore, high-strength steel coils are often thinner and more sensitive to surface imperfections. Careful regulation of the leveling process is crucial to avoid causing damage to the steel surface, such as scratches or indentations. This may involve using softer leveling rollers or implementing protective measures, such as cushioning materials or coatings, to prevent surface defects. In summary, the challenges in coil leveling for high-strength steel revolve around its inherent hardness, springback tendencies, yield point behavior, and sensitivity to surface imperfections. Overcoming these challenges requires specialized equipment, advanced leveling techniques, precise control, and expertise to ensure accurate and high-quality leveling results.
- Q:What are the common coil coating materials?
- The common coil coating materials include polyester, polyurethane, polyvinylidene fluoride (PVDF), and silicone-modified polyester (SMP).
- Q:How are steel coils processed for different levels of hardness?
- Steel coils can be processed for different levels of hardness through a combination of heat treatment and mechanical processes. To increase the hardness, the coils undergo a process called quenching and tempering. This involves heating the steel to a specific temperature, followed by rapid cooling (quenching) to create a hardened structure. Subsequently, the coils are reheated to a lower temperature and held there for a specific duration (tempering) to achieve the desired level of hardness. Other mechanical processes, such as cold rolling or cold drawing, can also be employed to further enhance the hardness of the steel coils.
- Q:What are the challenges in coil recoiling?
- Coil recoiling, also known as coil winding, can pose several challenges depending on the specific application and requirements. Some of the common challenges in coil recoiling include: 1. Precision and accuracy: Achieving precise and accurate winding is crucial for optimal coil performance. Maintaining consistent tension throughout the winding process, ensuring proper alignment, and controlling the speed are essential to avoid variations in the coil's electrical properties. 2. Wire management: Handling the wire during the recoiling process can be challenging. The wire may be delicate, prone to tangling, or have specific handling requirements, such as being magnetically or thermally sensitive. Proper wire management techniques, such as tension control, wire guide systems, and spooling mechanisms, need to be employed to prevent wire damage and ensure uniform winding. 3. Space constraints: In many applications, coils need to fit within specific space limitations. Designing and winding coils to fit compact spaces can be challenging, especially when considering the required number of turns, wire size, insulation, and any additional components or structures that may need to be incorporated. 4. Material selection: Selecting the appropriate wire and insulation material is crucial for coil performance and longevity. Factors such as electrical conductivity, thermal properties, mechanical strength, and chemical resistance need to be considered to ensure the coil can withstand the operating conditions and environmental factors it will be exposed to. 5. Heat dissipation: Coils often generate heat during operation, especially in high-power applications. Efficient heat dissipation is essential to prevent overheating and ensure the longevity of the coil. Designing the coil with proper ventilation, utilizing cooling mechanisms, or integrating heat sinks are some of the techniques used to address this challenge. 6. Quality control: Ensuring consistent quality in coil recoiling can be challenging due to factors such as variations in wire properties, operator skill, equipment calibration, and environmental conditions. Implementing robust quality control measures, such as conducting regular inspections, performing electrical tests, and monitoring process parameters, is necessary to maintain consistent coil performance. Overall, coil recoiling requires attention to detail, precision, and adherence to specific requirements to overcome the challenges and produce high-quality coils that meet the desired performance criteria.
- Q:How are steel coils used in the production of construction components?
- Steel coils are used in the production of construction components in various ways. One common use is for the manufacture of steel beams and columns, which are essential structural elements in buildings and other large structures. The steel coils are processed and shaped into the desired dimensions, then cut and welded to form the beams and columns. Steel coils are also used in the production of roofing and wall cladding materials for construction. These coils are often coated with protective layers to enhance durability and resistance to corrosion. The coils are then shaped and formed into roofing sheets, wall panels, or siding materials that provide both aesthetic appeal and functional protection to the building. Another important application of steel coils in construction is for the production of reinforcing bars, commonly known as rebar. Rebar is used to provide strength and stability to concrete structures, such as foundations, slabs, and walls. The steel coils are processed and cut into specific lengths, then shaped and twisted to form the required reinforcement bars, which are then embedded within the concrete during construction. Furthermore, steel coils can be used in the production of various other construction components, such as pipes, tubes, and profiles. These components are used for plumbing, heating, ventilation, and other structural applications. The steel coils undergo different manufacturing processes, including rolling, welding, and shaping, to achieve the desired dimensions and properties of these components. In summary, steel coils play a crucial role in the production of construction components. They are used to manufacture steel beams, columns, roofing and wall cladding materials, reinforcing bars, pipes, tubes, and profiles. These components are vital for the construction industry, as they provide strength, durability, and functionality to buildings and other structures.
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Al-Zinc Coated Steel Coil for construction roof
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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