Hot-Dip Galvanized Steel Sheet

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Hot-dipped Galvanized Steel Sheet in Sheets

Commodity	Hot dip galvanized steel coil and sheet
Technical Standard:	JIS 3302 / ASTM A653 / EN10143
Grade	DX51D / DX52D/ DX53D/ S250,280,320GD
Types:	Commercial / Drawing / Deep Drawing / Structural quality
Width	500/650/726/820/914/1000/1200/1219/1220/1250mm
Length	2000/2448/2800/3000/5000mm
Thickness	0.12-2.8mm
Type of coating:	Galvanized
Zinc coating	Z30-275g/m2
Surface Treatment	Chromed / Skin-pass/ Oiled/Slightly Oiled/ Dry/ Anti-fingerprint
Surface structure:	Zero spangle / minimized spangle / regular spangle/ big spangle
ID coil	508mm or 610mm
Coil weight	3-8 MT per coil
Package:	Properly packed for ocean freight exportation in 20''containers
Application:	Industrial panels, roofing and siding for painting
Price terms	FOB,CFR,CIF
Payment terms	T/T or L/C
Delivery time	Within 30 days
Remarks	Insurance is all risks
	MTC will be handed on with shipping documents
	We accept the third party certification test,such as SGS/BV

Technicaldata :

Hot dipped galvanized coil Technical Data

Chemical Composition
GRADE	C	Si	Mn	P	S	Ti
SGCC/DX51D+Z	≤0.10	≤0.50	≤0.60	≤0.10	≤0.030	≤0.020
DX52D+Z	≤0.10	≤0.50	≤0.60	≤0.10	≤0.030	≤0.020
SGCD/DX53D+Z	≤0.10	≤0.30	≤0.50	≤0.05	≤0.030	≤0.020
SGCE/DX54D+Z	≤0.10	≤0.30	≤0.30	≤0.03	≤0.020	≤0.020
DX56D+Z	≤0.10	≤0.30	≤0.30	≤0.03	≤0.020	≤0.020
Structural	≤0.20	≤0.60	≤1.70	≤0.10	≤0.045

Hot dipped galvanized steel coil Mechanical Properties
GRADE	Yield Strength MPa	Tensile Strength MPa	Elongation %
SGCC(DX51D+Z)	≥205	≥270	-
SGCD(DX53D+Z)	-	≥270	38
SGCE(DX54D+Z)	-	≥270	40
DX56D+Z	-	≥270	42

Q: What are the different types of steel sheet finishes for marine applications?: Marine applications commonly employ several different types of steel sheet finishes to enhance durability and corrosion resistance in the face of constant exposure to moisture, saltwater, and harsh weather conditions. 1. Hot-dip galvanized: Among the most frequently used finishes for marine applications is hot-dip galvanization. This process involves coating the steel sheet with a layer of zinc, effectively safeguarding against corrosion. The zinc layer acts as a sacrificial barrier, preventing rust formation in the underlying steel. 2. Stainless steel: Highly resistant to corrosion, stainless steel sheets find widespread use in marine applications. These sheets are composed of a steel, chromium, and nickel alloy, providing exceptional strength and corrosion resistance. Different grades of stainless steel sheets are available, with 316 stainless steel being the most commonly utilized in marine environments. 3. Powder coating: Powder coating is a favored finish for steel sheets in marine applications. The process involves electrostatically applying a layer of powdered polymer to the steel sheet, which is then cured under heat to form a robust and durable coating. Powder coating offers good corrosion resistance and can be tailored in terms of color and texture. 4. Epoxy coating: To ensure superior protection against corrosion in marine environments, steel sheets are frequently treated with epoxy coatings. These coatings boast chemical resistance and excellent adhesion to the steel surface. Epoxy coatings are also renowned for their high impact and abrasion resistance. 5. Organic coating: Organic coatings, such as polyurethane or acrylic coatings, are employed to shield steel sheets in marine applications. These coatings create a protective barrier against corrosion and are commonly utilized in offshore structures, ships, and other marine equipment. It is important to consider various factors, including specific environmental conditions, budget, and desired aesthetics, when selecting a steel sheet finish for marine applications. Consulting with a professional or referring to industry standards and recommendations can aid in determining the most suitable finish for a particular marine application.

Q: What is the difference between a galvanized and aluminized steel sheet?: Galvanized steel and aluminized steel sheets are both widely used in various industries due to their durability and corrosion-resistant properties. However, there are distinct differences between the two. Galvanized steel sheets are coated with a layer of zinc to protect the underlying steel from rust and corrosion. This process, known as galvanization, involves immersing the steel sheet in a bath of molten zinc or applying a zinc-rich coating through electroplating. The zinc layer acts as a sacrificial barrier, meaning that it will corrode before the steel does, providing excellent protection against rust. Galvanized steel is commonly used in outdoor applications, such as roofing, fences, and automobile parts. On the other hand, aluminized steel sheets are coated with a layer of aluminum-silicon alloy. This process, known as aluminization, involves hot-dipping the steel sheet in a bath of molten aluminum or applying a thin layer of aluminum-silicon alloy through a continuous hot-dip process. The aluminum-silicon coating offers excellent heat resistance and corrosion resistance. Aluminized steel is commonly used in applications where high temperatures are present, such as automotive exhaust systems, heat exchangers, and ovens. In summary, the main difference between galvanized and aluminized steel sheets lies in the type of coating applied to the steel. Galvanized steel is coated with zinc, providing excellent rust protection, while aluminized steel is coated with an aluminum-silicon alloy, providing superior heat and corrosion resistance. The choice between the two depends on the specific requirements of the application, such as the presence of high temperatures or the need for long-lasting rust protection.

Q: What are the different methods of joining steel sheets together?: There are several methods of joining steel sheets together, each with its own advantages and applications. Some of the common methods include: 1. Welding: Welding is a widely used method for joining steel sheets. It involves melting the edges of the sheets and fusing them together using heat. There are different types of welding processes such as arc welding, gas welding, and spot welding, each suited for specific applications. 2. Riveting: Riveting is a mechanical method of joining steel sheets using metal fasteners called rivets. The rivets are inserted through pre-drilled holes in the sheets and then hammered or pressed to secure them in place. Riveting is known for providing strong and durable joints. 3. Bolting: Bolting involves using bolts and nuts to hold steel sheets together. Holes are drilled through the sheets, and then bolts are inserted from one side, with nuts tightened on the other side to secure the joint. Bolting is quick, easy to assemble, and allows for disassembly if needed. 4. Adhesive bonding: Adhesive bonding uses specialized adhesives to join steel sheets together. The adhesive is applied between the surfaces to be joined and forms a strong bond as it cures. This method is commonly used in industries where welding can cause distortion or is not feasible due to the materials involved. 5. Mechanical fastening: Mechanical fasteners like screws, self-tapping screws, or nails can be used to join steel sheets together. These fasteners create a strong connection by penetrating the sheets and holding them in place. Mechanical fastening is relatively quick and doesn't require any specialized equipment. 6. Clinching: Clinching is a cold forming process that involves joining steel sheets by deforming the material without any external heat source. It involves pressing the sheets together and forming a mechanical interlock. Clinching is commonly used in the automotive industry due to its high-speed production capabilities and joint strength. Each method has its own advantages based on factors such as joint strength, ease of assembly, cost, and specific application requirements. The choice of joining method depends on the purpose of the joint, material properties, and environmental conditions the joint will be subjected to.

Q: What are the different types of surface finishes available for steel sheets?: Steel sheets come in a variety of surface finishes, each with its own purposes and aesthetic qualities. Some of the most common finishes include: 1. Hot rolled: Achieved by heating the steel and then rolling it, this finish creates a rough texture. It is commonly used for structural purposes where appearance is not the main concern. 2. Cold rolled: Unlike hot rolled, this finish is achieved at room temperature, resulting in a smoother and more refined surface. It is often used for applications that require precision or a visually appealing appearance. 3. Galvanized: Steel sheets are coated with a layer of zinc to provide excellent corrosion resistance. This finish is commonly used in outdoor or high-moisture environments. 4. Electro-galvanized: Similar to galvanized, this finish involves depositing a layer of zinc using an electrical current. It creates a thinner and more uniform coating. 5. Stainless steel: Chromium is added to the steel sheets to create a protective layer that prevents corrosion and staining. Stainless steel is known for its strength and resistance to chemicals, making it suitable for various applications. 6. Satin: This finish is achieved by brushing the steel surface with abrasive materials, resulting in a smooth and low-reflective appearance. It is commonly used for architectural and decorative purposes. 7. Mirror: Steel sheets with a mirror finish have a highly reflective surface achieved through progressive polishing. This finish is often used in decorative applications. 8. Painted: Steel sheets can be coated with paint to improve appearance and provide additional protection against corrosion. This finish offers a wide range of color options and customization possibilities. These are just a few examples of the available surface finishes for steel sheets. The choice of finish depends on the specific requirements of the application, including aesthetics, corrosion resistance, and functionality.

Q: Can the steel sheets be easily formed into curves or angles?: Yes, steel sheets can be easily formed into curves or angles through a process known as sheet metal bending. This involves using specialized tools such as brakes or press machines to bend the steel sheets to the desired shape. The ability to form curves or angles largely depends on the thickness and type of steel being used. Thinner and more malleable steel sheets are generally easier to work with and can be formed into tighter curves or angles. However, thicker and less malleable steel sheets may require more force and advanced machinery to achieve the desired shape.

Q: Can steel sheets be used for insulation in buildings?: Steel sheets are not suitable for insulation in buildings because they have high thermal conductivity. This characteristic permits the easy transfer of heat and cold. Conversely, insulation materials like fiberglass, mineral wool, foam board, or cellulose are specifically designed to hinder the transfer of heat, cold, or sound. These materials are commonly employed in buildings as they possess low thermal conductivity and efficiently minimize heat loss or gain.

Q: Can steel sheets be used for solar panel manufacturing?: Solar panel manufacturing can utilize steel sheets. Steel is a versatile material widely used in various industries, including renewable energy. It offers several advantages for manufacturing solar panels. To begin with, steel is a strong and durable material that provides structural integrity to solar panels. It can withstand harsh weather conditions and protect the delicate photovoltaic (PV) cells within the panels. This durability ensures longer lifespan for the panels, reducing maintenance and replacement costs. Additionally, steel sheets can be easily shaped and sized to meet the specific requirements of solar panel designs. This flexibility in manufacturing allows for the creation of efficient and visually appealing solar panels. Moreover, steel is a cost-effective option compared to alternatives such as aluminum or glass. It is readily available and has relatively low production costs, making it an economical choice for solar panel manufacturing. Nevertheless, it is important to note that steel sheets used in solar panel manufacturing are typically coated with protective layers to enhance their resistance to corrosion and prevent any negative impact on the PV cells. These coatings safeguard the steel from environmental factors like moisture or chemicals, ensuring the longevity and performance of the solar panels. In conclusion, steel sheets are indeed suitable for solar panel manufacturing due to their durability, versatility, cost-effectiveness, and ease of fabrication. When appropriately coated, steel provides a dependable and efficient solution for producing solar panels, thereby contributing to the growth of the renewable energy sector.

Q: Are steel sheets suitable for noise barriers or soundproofing?: Yes, steel sheets can be suitable for noise barriers or soundproofing. Steel is a dense and strong material that can effectively block sound transmission when used as a barrier. Additionally, steel sheets can be combined with other sound-absorbing materials to enhance their soundproofing capabilities.

Q: How do steel sheets compare to stainless steel sheets in terms of corrosion resistance?: Steel sheets and stainless steel sheets differ significantly in terms of corrosion resistance. While steel sheets are prone to corrosion due to their high carbon content, stainless steel sheets are specifically designed to resist corrosion. This is achieved by adding chromium to the alloy, which forms a protective oxide layer on the surface, preventing rust and corrosion. Therefore, stainless steel sheets offer superior corrosion resistance compared to regular steel sheets.

Q: Are steel sheets suitable for oil rig platforms?: Yes, steel sheets are suitable for oil rig platforms. Steel is commonly used in the construction of oil rig platforms due to its strength, durability, and ability to withstand harsh offshore conditions. It provides the necessary structural integrity and resistance to corrosion, making it a reliable choice for such applications.

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