Galvanized Steel CoiLs of High Qualities

Galvanized Steel CoiLs of High Qualities System 1

Galvanized Steel CoiLs of High Qualities

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 100000 m.t./month

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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.

Thickness: 0.2-3.0mm

Width: 600-1500mm

Coating Mass: Z08-Z275

Tolerance for thickness,width,flatness and so on conform to the requirements of JIS G3302 or ASTM A653M/924M

The speicfication of ASTM Such as A653m,A924 M and so on have been updated to the latest revisions

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

• Workability, durability

• Excellent anticorrosive property

• Excellent process capability

• High strength

• Smooth and flat surface

3.Hot-Dip Galvanized Steel Sheet Images

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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: 0.1mm~5mm

Width: max 2000mm

Coil weight:3-12 MT

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

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.

Q: How do steel coils impact the environment?: Steel coils impact the environment in several ways. Firstly, the production of steel coils requires large amounts of energy and resources, leading to increased greenhouse gas emissions and depletion of natural resources. Additionally, the manufacturing process generates air and water pollution, contributing to environmental degradation. Furthermore, the disposal of steel coils after use can result in land pollution if not properly managed. Overall, the production and use of steel coils have a significant environmental footprint.

Q: How are steel coils used in the manufacturing of lighting fixtures?: Steel coils are commonly used in the manufacturing of lighting fixtures as they provide a sturdy and durable framework for the fixtures. The coils are often shaped and welded to create the desired structure, ensuring that the lighting fixtures are robust and can withstand various installation environments. Additionally, steel coils can be coated or painted to enhance the aesthetics of the fixtures, making them more visually appealing.

Q: What are the factors affecting the lifespan of steel coils?: There are several factors that can affect the lifespan of steel coils, including the quality of the steel used, the level of protection against corrosion, the storage and handling conditions, the frequency and severity of mechanical stress, and the effectiveness of maintenance and preservation practices.

Q: Can steel coils be painted?: Yes, steel coils can be painted. Painting steel coils not only enhances their aesthetic appearance but also provides a protective coating against corrosion and other environmental factors. The coils are typically pre-treated and primed before the application of paint to ensure proper adhesion and durability.

Q: What are the dimensions of steel coils used in the construction materials industry?: The dimensions of steel coils used in the construction materials industry can vary depending on specific requirements and applications. However, there are some common dimensions that are frequently used. Steel coils in this industry typically have a width ranging from 600mm to 2,000mm, with the most common widths being 1,000mm and 1,200mm. The thickness of these coils can range from 0.4mm to 2.5mm, with the most commonly used thicknesses being between 0.6mm and 1.2mm. The inner diameter of the coil, known as the core size, can vary from 508mm to 610mm, with 610mm being the most widely used core size. Additionally, the weight of these coils can also vary, with common weights ranging from 3 to 15 tons. It is important to note that these dimensions may vary based on specific project requirements and can be customized to suit the needs of a particular construction project.

Q: How are steel coils loaded and unloaded from ships?: Steel coils are typically loaded and unloaded from ships using heavy-duty cranes and specialized equipment. When loading, the coils are lifted from the dockside or storage area using a crane with strong lifting capacity. They are carefully positioned onto the ship's deck, ensuring proper balance and securement to prevent any damage during transit. Unloading is done in a similar manner, with the crane carefully lifting the coils from the ship's deck and placing them onto the dock or designated storage area. Throughout the process, safety protocols are followed to ensure the smooth and efficient handling of these heavy and valuable cargo.

Q: what is the difference between metal and steel: well, steel is a type of metal. It's sort of like asking the difference between a bug and an ant, an ant is a bug, but not every bug is an ant. Likewise, steel is metal, but not all metal is steel. Gold is metal, Silver is metal, Iron is metal, Steel is metal.

Q: for my engineering project I have been asked to design a method of suspending a TV of weight 14Kg from a gantry, the TV must be 5m below the gantry. My team have decided to use as a suspension method a steel cylinder of outer diameter of 10cm and an inner diameter of 8, however we now need to work out both the max stress and strain and the actual stress and strain. and help would be useful: In most engineering calculations we have to make some assumptions about ideal behavior of a material otherwise we would not be able to simplify our equations to manageable sizes. Your steel cylinder (which I'll call a pipe) is made of a certain type of steel. That steel type has property tolerances listed in a steel manual to help you know about your steel before you begin. You'll need to know the cross-sectional area of the pipe and the weight of the TV to determine an average stress on the pipe. Obviously the weight of the TV is the force it generates. The force is its mass x gravitational acceleration. Since we typically think of steel as an elastic material, we think of it stretching like a rubber band or a spring. You pull it down with a TV and it deflects a certain amount, and will return to its original length when the TV is removed. It is typical to assume that all steel, regardless of its strength, has the same value for this elastic property. It is commonly referred to as the elastic modulus. This value will help you determine what type of strain occurs under what type of stress. So, once you have the stress, you can get the strain by using the elastic modulus. Once you have the strain you can determine the deflection based on the pipe length. Having the steel properties will help you determine how close your TV comes to stressing the pipe to its yield stress. If you reach a yield stress, your steel will deflect, but when you take the TV off it will not return to its original shape. I hope I've helped outline some of the things you'll need to do for the project, I tried not to give away specifics so that you can actually engage your brain around the project. Enjoy, learn a lot, and realize that this skill could easily turn into a career where you are designing projects that when done correctly save people's lives every day of the year.

Q: What are the common sizes of steel coils?: The specific needs and requirements of different industries determine the variations in common sizes of steel coils. However, the steel manufacturing and processing sectors commonly utilize standard sizes. These sizes include: 1. Slit Coils: Typically smaller, slit coils are readily available in widths ranging from 0.5 inches to 72 inches. The weight of slit coils varies, usually falling between 1000 pounds and 50,000 pounds. 2. Master Coils: Larger in size, master coils are generally utilized in steel processing facilities for the production of different steel products. The width of master coils commonly ranges from 36 inches to 96 inches, while the weight may vary from 5,000 pounds to 60,000 pounds. 3. Sheet Coils: Construction, automotive, and appliance manufacturing industries often employ sheet coils. The standard sizes for sheet coils vary, but they are commonly found in widths of 48 inches, 60 inches, and 72 inches, with lengths ranging from 96 inches to 240 inches. 4. Plate Coils: Primarily utilized in heavy-duty applications such as shipbuilding, bridge construction, and pressure vessel manufacturing, plate coils tend to be larger in size. Their widths typically range from 36 inches to 96 inches, while lengths vary from 96 inches to 480 inches. It is important to note that these sizes are not fixed and can be customized according to specific customer requirements. Steel manufacturers and suppliers possess the capability to produce coils in various sizes to cater to the diverse needs of their clients.

Q: What are the different types of steel coil surface treatment methods?: Various industries commonly use several different types of surface treatment methods for steel coils. These methods aim to enhance the performance, durability, and appearance of the coils. Some commonly employed treatment methods for steel coils include: 1. Hot-dip galvanizing: Immersing the steel coil in molten zinc provides excellent corrosion resistance and prevents rusting. 2. Electro-galvanizing: Electroplating a thin layer of zinc onto the steel coil surface offers similar corrosion protection to hot-dip galvanizing but with a thinner coating. 3. Cold-rolled steel coil: Passing the steel coil through rollers at room temperature creates a smooth and polished surface finish, suitable for high-quality appearance applications. 4. Pre-painted steel coil: Also known as color-coated steel coil, this method involves applying a layer of paint or coating onto the steel surface, providing an attractive appearance and additional corrosion protection. 5. Phosphating: Applying a phosphate coating onto the steel surface improves the adhesion of subsequent coatings, such as paint or powder coating, and offers corrosion resistance. 6. Chromate conversion coating: This method entails applying a conversion coating, typically using chromium compounds, onto the steel coil surface to enhance paint adhesion and corrosion resistance. 7. Passivation: Chemical treatment is used to remove iron oxide and other contaminants from the steel surface, thereby improving the corrosion resistance of the steel coil. 8. Oiling: A thin layer of oil is applied onto the steel coil surface, commonly used for preventing corrosion during storage and transportation. These treatment methods are commonly employed for steel coil surfaces. The choice of method depends on specific requirements like corrosion resistance, appearance, and performance.

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