Hot Dip Galvanized Steel Sheet

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Product Description:

General Information of Hot Dip Galvanized Steel Coil

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.

Specification of Hot Dip Galvanized Steel Coil:

1. Thickness: 0.13mm-0.7mm

2. Width: 600mm-1250mm

3. Zinc Coating: 30-200g/m2

4. Internal Diameter: 508mm/610mm

5. Coil Weight: 3-12MT

6. Quality: commercial and structural quality

7. Surface Treatment: regular & minimum spangle, zero spangle, oiled & dry , chromated , non-skin pass ,skin pass

8. Standard: JIS G 3302, ASTM A 653M, EN 10327

9. Steel Grade: SGCC, CS, FS, SS, LFQ, DX51D+Z , S280GD

Technical Data of Hot Dip Galvanized Steel Coil

Chemical Composition	C	Si	Mn	P	S
Chemical Composition	0.04-0.06%	0.01-0.03%	0.18-0.22%	0.014-0.016%	0.006%-0.009%

Technical Data
Yield Strength	(Mpa) 280-320
Tensile Strength	(Mpa) 340-390
Elongation	20%-30%
Out-of-square	not exceed 1% Flatness
Bow	15mmmax
Edge Wave	9mmmax
Centre Buckle	8mmmax
Bending At 180 Degree	No crack, purling and fraction

Application of Hot Dip Galvanized Steel Coil

It can be widely used in transportation, light industry, civil usage and farming. It is also the perfect building material in construction for making roofing tile, steel profiles for wall partition, T-bar, studs, fireproof door, air conditioning duct and home appliance.

Package of Hot Dip Galvanized Steel Coil

Full wrapped with anti-damped paper inside, iron sheet wrapped outside, and bundled by iron strips.

Q: What is the difference between a hot rolled and hot dipped galvanized steel sheet?: The main difference between a hot rolled and hot dipped galvanized steel sheet is the process they undergo. Hot rolled steel sheets are produced by heating the steel above its recrystallization temperature and then rolling it to the desired thickness. On the other hand, hot dipped galvanized steel sheets are formed by immersing the steel sheet into a bath of molten zinc, creating a layer of zinc coating on the surface. This zinc coating provides excellent corrosion resistance to the steel, making it suitable for applications where protection against rust is important.

Q: What are the different surface treatments for steel sheets?: There are several different surface treatments available for steel sheets, each serving a specific purpose and providing unique benefits. Some of the common surface treatments for steel sheets include: 1. Hot-dip galvanizing: This process involves immersing the steel sheet in a bath of molten zinc, creating a protective layer on the surface. Hot-dip galvanizing provides excellent corrosion resistance and is commonly used in outdoor applications, such as roofing, fencing, and automotive parts. 2. Electroplating: In this process, a thin layer of metal is deposited onto the steel sheet using an electric current. Common metals used for electroplating include chromium, nickel, and zinc. Electroplating improves the appearance of the steel sheet, enhances corrosion resistance, and can provide additional properties like improved wear resistance. 3. Powder coating: Powder coating involves applying a dry powder to the steel sheet and then baking it to create a durable, smooth, and uniform finish. Powder coating provides excellent corrosion resistance, impact resistance, and can be applied in a wide range of colors and textures, making it popular for architectural, automotive, and appliance applications. 4. Painting: Applying a layer of paint to the steel sheet provides both aesthetic appeal and protection against corrosion. Different types of paints, such as epoxy, polyurethane, or acrylic, may be used depending on the desired appearance and environmental conditions. 5. Passivation: Passivation is a chemical treatment that removes impurities and contaminants from the steel surface, improving its corrosion resistance. This process is commonly used for stainless steel sheets to enhance their resistance to oxidation and staining. 6. Electropolishing: This treatment involves immersing the steel sheet in an electrolyte bath and applying an electric current to remove a thin layer of material from the surface. Electropolishing improves the surface finish of the steel sheet, making it smoother, brighter, and more resistant to corrosion. These are just a few examples of the various surface treatments available for steel sheets. The choice of treatment depends on factors such as the intended application, desired appearance, corrosion resistance requirements, and budget. Consulting with a steel sheet supplier or a surface treatment specialist can help determine the most suitable treatment for specific needs.

Q: Can the steel sheets be cut easily?: Yes, steel sheets can be cut easily with the right tools and techniques. Steel is a strong and durable material, but it can be cut using techniques such as shearing, sawing, or using plasma or laser cutting machines. The ease of cutting steel sheets also depends on their thickness and the specific type of steel being used. Thinner sheets are generally easier to cut than thicker ones. Additionally, using appropriate cutting tools and following proper safety measures can ensure a smooth and efficient cutting process.

Q: Can the steel sheets be used for insulation purposes?: Typically, steel sheets are not employed for insulation purposes. Due to its high conductivity, steel easily transfers heat and cold. Consequently, it is ill-suited for insulation as it fails to effectively hinder the transfer of thermal energy. Conversely, insulation materials are explicitly designed to minimize heat transfer and enhance energy efficiency in buildings and other structures. Foam, fiberglass, and cellulose are examples of common insulation materials that exhibit significantly greater resistance to heat flow than steel.

Q: What is the average yield strength of steel sheets?: The specific grade and thickness of steel being used can cause variations in the average yield strength of steel sheets. Typically, the average yield strength of steel sheets falls between 250 and 600 megapascals (MPa). It is worth noting that different steel grades, such as mild steel, high-strength low-alloy (HSLA) steel, or stainless steel, will have different average yield strengths. Furthermore, the yield strength of a steel sheet can be affected by its thickness, with thinner sheets generally having higher yield strengths. Therefore, it is crucial to refer to the manufacturer's specifications or industry guidelines to determine the specific average yield strength for a particular steel sheet.

Q: Can steel sheets be used for sculptures and artwork?: Yes, steel sheets can definitely be used for sculptures and artwork. Steel is a versatile material that can be shaped, welded, and manipulated into various forms and designs. Its strength and durability make it ideal for creating large outdoor sculptures or intricate indoor artwork. Additionally, steel sheets can be painted, textured, or treated to achieve different visual effects, allowing artists to explore different creative possibilities.

Q: What are the different grades of steel sheets available?: There are several different grades of steel sheets available, including mild steel, stainless steel, galvanized steel, high-strength low-alloy (HSLA) steel, and carbon steel. Each grade has unique properties and is suitable for various applications in industries such as construction, automotive, and manufacturing.

Q: Can steel sheets be used for making HVAC ducts?: Yes, steel sheets can be used for making HVAC (Heating, Ventilation, and Air Conditioning) ducts. Steel is a commonly used material for HVAC duct fabrication due to its strength, durability, and fire resistance properties. Steel sheets are typically cut, formed, and welded together to create ductwork that can efficiently transport air throughout a building. The use of steel sheets ensures that the ducts can withstand the high temperatures and pressures associated with HVAC systems while maintaining structural integrity. Additionally, steel ducts are less prone to damage from pests, moisture, and mold growth compared to other materials. Overall, steel sheets are a suitable choice for making HVAC ducts due to their reliability and ability to meet the necessary performance requirements.

Q: Are steel sheets suitable for water tanks or reservoirs?: Yes, steel sheets are suitable for water tanks or reservoirs. Steel is a durable and strong material that can withstand the weight of water and does not easily corrode or leak. It is commonly used in the construction of water tanks and reservoirs due to its reliability and longevity.

Q: Can steel sheets be recycled into other steel products?: Yes, steel sheets can be recycled into other steel products. The recycling process involves melting down the steel sheets to remove impurities, and then reshaping and reforming the molten steel into new steel products. This helps conserve resources, reduce waste, and minimize the environmental impact of steel production.

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