Pre-Painted Galvanized/Aluzinc Steel Roof of High Quality with Different Width

Pre-Painted Galvanized/Aluzinc Steel Roof of High Quality with Different Width System 1

Pre-Painted Galvanized/Aluzinc Steel Roof of High Quality with Different Width

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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2.Main Features of the Pre-Painted Galvanized/Aluzinc Steel Roof：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3.Pre-Painted Galvanized/Aluzinc Steel Roof Images

Pre-Painted Galvanized/Aluzinc Steel Roof of High Quality with Different Width

4.Pre-Painted Galvanized/Aluzinc Steel Roof Specification

Standard: AISI, ASTM, BS, DIN, GB, JIS

Grade: SGCC SGCH SGCD DX51D

Thickness: 0.13-3.0mm

Model Number: AISI, ASTM, BS, DIN, GB, JIS

Type: Steel Plate

Surface Treatment: Galvanized, anti-finger, with film

Application: Container Plate，panel sandwich

Special Use: High-strength Steel Plate,panel sandwich

Width: 30-1500mm

Length: any length

color: RAL color

5.FAQ of Pre-Painted Galvanized/Aluzinc Steel Roof

1.What’s the brand of the paint?

We use the best brand of all of the word—AKZO.

2.Which payment term we can do?

L/C at sight or T/T.

3.What’s the basic material of this product?

Galvanized/Aluzinc Steel

Q:How are steel coils processed before being used in manufacturing?: Before steel coils are used in manufacturing, they undergo a series of processing steps. Initially, the steel coil is uncoiled from a large spool, a process that is typically carried out using a machine known as a decoiler. Once the coil is uncoiled, it is carefully inspected for any defects or damages. Following inspection, the steel coil is subjected to a process called leveling. This involves passing the coil through a set of rollers to eliminate any unevenness or waviness in the steel. By doing so, the leveling process guarantees that the coil has a uniform thickness and a flat surface, which is crucial for subsequent processing. The subsequent step involves thoroughly cleaning the steel coil to eliminate any impurities it may have, such as rust, oil, or dirt. Typically, this is accomplished by running the coil through a cleaning line, where it is treated with chemicals and water sprays. Through this cleaning process, the surface of the coil is thoroughly cleansed of any contaminants that could potentially compromise the quality of the final product. Once the cleaning process is complete, the steel coil may undergo additional processes tailored to the specific requirements of the manufacturing process. For instance, the coil may undergo annealing to enhance its ductility and reduce its hardness. Annealing entails heating the coil to a specific temperature and gradually cooling it. This process serves to alleviate internal stresses and enhance the mechanical properties of the steel. Upon completion of all necessary processing steps, the steel coil is now ready to be utilized in the manufacturing process. It can be further processed into various forms and shapes, such as sheets, plates, or strips, depending on the specific requirements of the manufacturing process. These processed steel coils find application in a wide array of industries, including automotive, construction, appliances, and machinery.

Q:How are steel coils inspected for elongation using elongation testers?: Elongation testers are utilized to inspect steel coils for elongation, following a specific procedure. Initially, a representative sample is extracted from the steel coil, which is then prepared for testing by cutting it into a specific size and shape. Typically, the sample takes the form of a flat strip. Next, the prepared sample is inserted into the elongation tester, which comprises two clamps. One end of the sample is securely held in one clamp, while the other end is held in the other clamp. These clamps are designed to prevent any slippage during the testing process. Once the sample is securely clamped, the elongation tester applies a gradually increasing tensile force to the sample. Consequently, the sample elongates. During this elongation, the tester measures the change in length using a precision measuring instrument, like a strain gauge or an extensometer. The elongation tester records the original length of the sample before the test and continuously measures the length as the force is applied. To calculate the elongation percentage, the original length is subtracted from the final length of the sample, which is then divided by the original length. The obtained elongation value is then compared to the elongation requirements specified by industry standards or customer specifications. If the elongation falls within the acceptable range, the steel coil is considered to have passed the elongation test. On the other hand, if the elongation value exceeds the allowable limits, the steel coil might be rejected or undergo further investigation to determine the cause of elongation. Overall, the process of inspecting steel coils for elongation using elongation testers involves sampling, secure clamping, application of tensile force, length measurement, and elongation percentage calculation. This ensures that the steel coils meet the desired standards and requirements, guaranteeing their quality and mechanical properties.

Q:What are the different methods of surface treatment for steel coils?: Steel coils can undergo various surface treatment methods, each with its own advantages and uses. Some commonly employed techniques include: 1. Hot-dip galvanizing: Immersing the steel coil in molten zinc results in a protective coating. This process offers excellent corrosion resistance and is commonly employed in outdoor applications like roofing, fencing, and automotive parts. 2. Electro-galvanizing: A thin layer of zinc is electroplated onto the steel coil's surface. Electro-galvanizing provides similar corrosion resistance to hot-dip galvanizing but with a thinner coating. It is often utilized when a smooth and visually appealing finish is desired, such as in appliances, electrical equipment, and automotive components. 3. Powder coating: A dry powder is applied to the steel coil's surface and cured under heat to form a durable and protective layer. This method offers excellent resistance to chipping, scratching, and fading, making it suitable for both indoor and outdoor applications. 4. Painting: Liquid paint coatings can be applied to steel coils, offering both protection and aesthetic appeal. These coatings can be customized to meet specific requirements such as corrosion resistance, UV protection, or chemical resistance. They find common usage in industries like construction, automotive, and appliances. 5. Pickling and oiling: This method involves removing scale or rust from the steel coil's surface by dipping it in an acid solution (pickling), followed by a coating of oil to prevent reoxidation. Pickling and oiling are typically employed for temporary corrosion protection during the storage and transportation of steel coils. 6. Pre-painted coatings: Steel coils can be coated with pre-painted finishes during the manufacturing stage. This continuous process involves passing the steel coil through a coating line where a layer of paint is applied. Pre-painted coatings offer a wide range of colors and finishes, making them popular in industries like construction, automotive, and appliances. These are only a few examples of the surface treatment methods commonly used for steel coils. The selection of a specific technique depends on factors such as desired corrosion resistance, aesthetic preferences, environmental conditions, and specific application requirements.

Q:How are steel coils priced?: Steel coils are priced based on various factors including the current market demand and supply, raw material costs, production and processing expenses, transportation and logistics costs, as well as any additional charges or fees imposed by the manufacturer or supplier.

Q:What are the different types of steel coil treatments?: There are several types of steel coil treatments, including pickling, oiling, and galvanizing. Pickling involves immersing the steel coil in an acid bath to remove impurities and scale, resulting in a clean surface. Oiling is the process of applying a thin film of oil to the coil to prevent corrosion during storage and transportation. Galvanizing is a treatment where a layer of zinc is applied to the steel coil, providing excellent protection against corrosion.

Q:What are the environmental and social impacts of mining, processing and using steel?: Without it, you would not have many of the things that you enjoy today. Just think, no cannons, unless they were made of bronze, but that requires mining as well. No computers, no cars, no skate boards, no tall buildings, no pots and pans, no bath tubs, no factories to build things that are made out of non-metallic materials. No stereos, no TVs, no eating utensils, just think, you would have to eat like the Japanese do with bowls and your fingers. In short, just about everything around you is some how made with steel. If you are against steel and feel that it's impact on the ecology of the world is to great, what would you be willing to give up? Your car, ipod, computer, stereo, bed-everything about it uses steel in 0one way or another. Your Cd's, DVDs, just what would you want to give up because, yuck, it was made with steel equipment, or to some extent, made from steel.

Q:What are the common coil loading and unloading procedures?: Common coil loading procedures involve using cranes or forklifts to lift and position coils onto trailers or flatbed trucks. The coils are typically secured using straps, chains, or coil racks to prevent shifting during transportation. During unloading, the same equipment is used to carefully lift and remove the coils from the truck, ensuring safety and stability throughout the process.

Q:How are steel coils processed and shaped for specific applications?: Steel coils are processed and shaped for specific applications through a series of manufacturing processes. These processes typically include cleaning, pickling, cold rolling, annealing, and slitting. Cleaning removes any surface impurities, pickling removes scale and oxides, cold rolling reduces the thickness and enhances the strength, annealing improves ductility and reduces hardness, and finally, slitting cuts the coils into desired widths. These steps ensure that steel coils are transformed into the appropriate shape and size required for specific applications, such as in construction, automotive, or manufacturing industries.

Q:I have a Victorinox Pioneer, and I recently filed a little metal off the blade for some jimping. Is the already stainless steel blade still stainless?: Yes, stainless steel is stainless all the way through. All metals are uniform in composition throughout the piece. However, many metal items are plated to give a different finish from the base metal or to provide protection. An example is galvanized ductwork. The duct is made of steel, but a coating of zinc is plated onto it for corrosion resistance. Likewise, some items are made of steel or brass, but are chrome plated to present a bright, shiny appearance.

Q:How are steel coils used in the production of construction materials?: Steel coils are commonly used in the production of construction materials due to their strength, durability, and versatility. These coils are typically made from high-quality steel and are formed into a continuous, cylindrical shape. In the production of construction materials, steel coils are used in various ways. One primary application is in the manufacturing of steel beams, which are essential components in the construction of buildings, bridges, and other structures. Steel coils are processed and shaped into the desired size and dimension, allowing them to be easily formed into beams that can withstand heavy loads and provide structural support. Another important use of steel coils in construction materials is in the production of roofing materials. These coils are often transformed into corrugated sheets, which are widely used as roofing panels. The durability and weather resistance of steel make it an ideal choice for protecting buildings from the elements, including rain, snow, and strong winds. Additionally, these steel coils can be coated with protective layers to enhance their longevity and prevent corrosion. Steel coils are also employed in the production of construction materials such as pipes, tubes, and poles. These coils are formed into the desired shape and size, allowing for the creation of strong and reliable components for infrastructure projects. Whether it is for underground pipelines, structural support systems, or utility poles, steel coils provide the necessary strength and durability required for these construction materials. Furthermore, steel coils play a crucial role in the production of construction materials used in the fabrication of various fixtures and fittings. From door frames and window frames to reinforcement bars and wire mesh, steel coils are processed and shaped to meet specific requirements. This versatility allows for the creation of a wide range of construction materials that are essential for the completion of buildings and infrastructure projects. In conclusion, steel coils are extensively used in the production of construction materials due to their strength, durability, and versatility. From steel beams and roofing materials to pipes and fixtures, these coils are transformed into various shapes and sizes to meet the specific needs of construction projects. The use of steel coils ensures that construction materials are strong, reliable, and capable of withstanding the demands of the built environment.

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