Hot-dip Zinc Coating Steel Building Roof Walls in Good Price

Hot-dip Zinc Coating Steel Building Roof Walls in Good Price System 1

Hot-dip Zinc Coating Steel Building Roof Walls in Good Price System 2

Hot-dip Zinc Coating Steel Building Roof Walls in Good Price

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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Hot-dip Zinc Coating Steel Building Roof Walls in Good Price

1.Structure of Hot-Dip Galvanized Steel Sheet Description：

Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering.

2.Main Features of the Hot-Dip Galvanized Steel Sheet：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent anticorrosive property

• High strength

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Sheet Images

Hot-dip Zinc Coating Steel Building Roof Walls in Good Price

4.Hot-Dip Galvanized Steel Sheet Specification

Standard: ASTM, JIS,EN

Grade: CS, DX51D+Z,SGCC, SS 230~550,S220GD+Z~S550GD+Z, SGC340~SGC570

Thickness: 0.18mm~5mm

Width: max 2000mm

Coil weight:3-12 MT

Coil ID:508/610mm

Surface structure: zero spangle, regular spangle or minimum spangle

Surface treatment: Chromate treatment, Oiled/dry, skinpassed/non-skinpassed

Packing: Standard seaworthy export package

Technology test results:

Processability	Yield strength	Tensile strength	Elongation %	180°cold-bending
Common PV	-	270-500	-	d=0,intact,no zinc removal
Mechanical interlocking JY	-	270-500	-	d=0,intact,no zinc removal
Structure JG	>=240	>=370	>=18	d=0,intact,no zinc removal
Deep drawn SC	-	270-380	>=30	d=0,intact,no zinc removal
EDDQ SC	-	270-380	>=30	d=0,intact,no zinc removal

5.FAQ of Hot-Dip Galvanized Steel Sheet

We have organized several common questions for our clients，may help you sincerely：

1.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.

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 15-30 days, but the shipment will depend on the vessel situation.

Q: What are the common methods of packaging steel coils for transportation?: There are several common methods of packaging steel coils for transportation. One widely used method is to use steel strapping or bands to secure the coils together. This method involves tightly wrapping the coils with steel bands and securing them with metal buckles or seals. The strapping helps to keep the coils in place and prevents them from shifting or rolling during transportation. Another common method is to use wooden pallets or skids to stack and transport the steel coils. The coils are placed on the pallets and secured with steel strapping or bands. This method provides stability and allows for easy handling and loading onto trucks or other transportation vehicles. Some steel coils are also packaged in wooden crates or boxes. These crates are typically made of strong and durable wood and are designed to protect the coils from external impacts or damage during transportation. The crates are often reinforced with steel bands or strapping to provide additional strength and stability. In addition to these methods, some steel coils are packaged in specialized containers or units. These containers are specifically designed to hold and secure steel coils for transportation. They often have built-in mechanisms or features that make loading and unloading the coils easier and safer. It is important to note that the specific method of packaging steel coils for transportation may vary depending on factors such as the size and weight of the coils, the mode of transportation, and any specific requirements or regulations in place.

Q: What are the different coil leveling methods used for steel coils?: Steel coils can be leveled using various methods, each with its own advantages and limitations. Here are some commonly used methods: 1. Roller Leveling: Coils pass through rollers that apply pressure to flatten and level them. This method is effective in reducing coil crown or center buckle and eliminating coil memory. However, it may not be suitable for coils with severe shape defects or variations. 2. Stretch Leveling: Coils are stretched to remove shape defects. Gripper heads hold the edges of the coil while it is stretched. Stretch leveling is particularly effective in correcting crossbow and edge wave defects. However, it may cause elongation and yield loss in the material. 3. Temper Pass: Coils go through temper mill stands, where tension and compression forces are applied. Temper pass leveling improves flatness and removes coil memory. It is commonly used for thinner gauge steel coils but may not be suitable for thicker coils. 4. Corrective Leveling: This method is used for coils with severe shape defects. Skilled operators selectively remove material from specific areas of the coil to correct the shape. Corrective leveling effectively eliminates shape defects and improves flatness but requires significant labor. 5. Tension Leveling: Coils undergo tension forces while passing through pinch rolls. Tension leveling removes coil memory and improves flatness, especially for coils with edge wave defects. However, it may cause elongation and yield loss in the material. These are just a few of the coil leveling methods used for steel coils. The choice of method depends on specific requirements and desired flatness results. Considerations such as material thickness, shape defects, and production capacity are important in selecting the appropriate leveling method.

Q: How are steel coils used in the packaging industry?: Steel coils are used in the packaging industry to create durable and sturdy packaging materials, such as metal strapping and steel bands. These coils are commonly used to secure and protect heavy or bulky items during transportation, ensuring that the packaging remains intact and resistant to damage.

Q: I know this is an alloy, but can it be mixed to form a superior steel? Therefore less likely to stain?: yes loads

Q: I am working on a hydrogen generator, but the stainless steel I am using corrodes and turns the water brown. Can anyone tell me if there is stainless steel that does not corrode, and if so, what is it called and where can I get some.Thank you.: All stainless steel will corrode in certain conditions. Some varieties are worse than others. For instance grade 409 which is used for car exhausts (and other things) will rust. For the most suitable grade call a local steel supplier which carries stainless steel. Some of these companies will have a catalog of available grades and the appropriate uses. It would probably help to let them know what types of chemicals are present and what temperature the water is. You may want to call several suppliers, the quality of answer you get may vary quite a bit from company to company. The cost of exotic grades of stainless can be quite high. you may have to use a less appropriate grade if you can't justify the cost. If corrosion is a very serious concern for this be forewarned that stainless steels can be contaminated by contact with carbon steel (ordinary steel). I have seen rust form on stainless steel after a carbon steel bar was set down on the stainless steel. The carbon steel will leave trace amounts under prolonged contact. I have even seen signs of contamination of stainless steel direct from the supplier.

Q: How are steel coils different from steel sheets?: Steel coils and steel sheets are different in terms of their shape and size. Steel coils are typically long and cylindrical, resembling a large spool, whereas steel sheets are flat and rectangular. Steel coils are often used in industrial applications such as manufacturing and construction, where they can be unrolled and cut into smaller pieces. On the other hand, steel sheets are commonly used in architectural and decorative purposes, such as roofing, cladding, or fabrication of appliances and furniture.

Q: How are steel coils used in the production of packaging materials?: Steel coils are used in the production of packaging materials as they are processed and shaped into various forms, such as sheets or strips, which can be used to create durable and sturdy packaging products. These coils are often used to make packaging materials like cans, drums, and containers, providing strength, structural stability, and protection to the packaged goods during storage and transportation.

Q: How are steel coils used in the production of industrial equipment?: Steel coils are a vital component in the production of industrial equipment. These coils are large, flat rolled sheets of steel that are typically used as raw material in various manufacturing processes. Firstly, steel coils are used for fabrication purposes, where they are cut, shaped, and welded together to create the framework or structure of industrial equipment. This includes machinery, heavy-duty vehicles, storage tanks, and other industrial components. The coils provide the necessary strength and durability to withstand the demanding conditions faced by industrial equipment. Additionally, steel coils are often formed into specific shapes to produce parts and components for industrial machinery. These parts can include gears, shafts, bearings, brackets, and many others. The versatility of steel allows it to be easily manipulated and fabricated into different shapes and sizes, making it an ideal material for such applications. Moreover, steel coils are also used in the construction of industrial equipment, particularly in the manufacturing of boilers, heat exchangers, and pressure vessels. These coils are typically formed into tubes or pipes, which are then welded or brazed together to create the necessary structure for these equipment. The high strength and heat resistance properties of steel make it the preferred material for such applications, ensuring the safe and efficient operation of industrial processes. In summary, steel coils play a crucial role in the production of industrial equipment. They are used as raw material for fabrication, forming parts and components, and constructing crucial equipment such as boilers and pressure vessels. The durability, strength, and versatility of steel make it an indispensable material in the manufacturing industry.

Q: How are steel coils processed before they are used in manufacturing?: Before being used in manufacturing, steel coils undergo several processing steps. The initial step, known as pickling, entails immersing the coils in an acid bath to eliminate any surface impurities such as rust or scale. This step serves to enhance the surface quality of the steel. After pickling, the coils are subjected to a process called cold rolling. This involves passing the coils through a set of rollers to decrease their thickness and enhance their dimensional accuracy. Additionally, cold rolling enhances the mechanical properties of the steel, rendering it stronger and more durable. Following cold rolling, the coils are annealed. This process involves heating the coils to a specific temperature and gradually cooling them. Annealing helps to alleviate internal stresses within the steel and improve its formability and ductility. Subsequently, the coils may undergo further surface treatments, such as galvanizing or coating. Galvanizing involves applying a layer of zinc to protect the steel from corrosion, while coating may involve applying various types of paint or polymer to enhance the steel's appearance or provide specific functionalities. Once the coils have undergone the necessary processing and treatments, they are typically cut into smaller sheets or strips according to the manufacturing requirements. These sheets or strips can then be utilized in various manufacturing processes, including stamping, forming, welding, or fabrication, to create a diverse array of products, ranging from automotive components to appliances, construction materials, and more. In summary, steel coils go through a series of processing steps, including pickling, cold rolling, annealing, and surface treatments, before they are prepared for use in manufacturing. These processes result in improved quality, strength, and formability of the steel, enabling it to be transformed into a wide range of products.

Q: What are the common applications of hot-rolled steel coils?: Hot-rolled steel coils are commonly used in various applications such as construction, automotive manufacturing, pipe and tube manufacturing, shipbuilding, and general engineering purposes. They are particularly suitable for projects that require strong and durable materials, as well as those that involve shaping and forming processes.

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