FDHOT-DIP GALVANIZED STEEL

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 8000 m.t./month

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HOT-DIP GALVANIZED STEEL 72104910

THICKNESS：0.18mm-1.5mm

WIDTH：900mm-1250mm

COATING MASS：Z30-Z275

SPANGLE：Regular Spangle，Minimized Spangle，Zero Spangle

SURFACE TREATMENT：N0on or Chromated,Non or Oiled,Non or Anti Finger Print

COIL INNER DIAMETER：508mm/610mm

COIL WEIGHT：3mt-7mt

In continuous units in cold rolled steel strip, galvanized steel (electro galvanized and hot dip galvanized) as substrate, after surface pretreatment (degreasing and science processing), using the method of roll coating, coated with a layer or multi-layer liquid coating of plate, after baking and cooling income is the coating steel plate. Because the coating can have a variety of colors, on the habits of the coated steel sheet is called color coating steel plate. Because the coating is carried out before the sheet metal forming, in foreign countries which is called pre coating plate.

Color coated steel sheet is an organic coating coating on the steel surface, it has the advantages of beautiful appearance, bright color, high strength, good corrosion resistance, easy processing molding, but also allows the user to reduce costs, reduce pollution.

From the United States in 1935 to establish the first continuously coated steel line to begin, color coated steel plate has been widely applied, the current color coated plate varieties, about more than 600 kinds, the advantages of color coated sheet and organic polymer and steel plate of the two, which has good colorability, organic polymer molding, corrosion resistance and decorative, and steel plate with high strength and easy processing, can easily be punching cutting, bending, deep drawing processing. Made this makes organic coated steel sheet products have excellent practical, decorative, workability, durability.

Q: What are the different sheet metal rolling techniques for steel sheets?: There are several sheet metal rolling techniques that are commonly used for steel sheets. These techniques include hot rolling, cold rolling, and roll forming. Hot rolling is a process in which steel sheets are heated above their recrystallization temperature and then passed through a series of rollers to reduce their thickness. This technique is commonly used to produce steel sheets with a consistent and uniform thickness. The hot rolling process also improves the mechanical properties of the steel, making it stronger and more ductile. Cold rolling, on the other hand, is a technique in which steel sheets are passed through rollers at room temperature. This process is used to produce thinner and smoother steel sheets with a higher degree of dimensional accuracy. Cold-rolled steel sheets are often used in applications that require a high-quality surface finish, such as automotive body panels and appliances. Roll forming is a continuous bending process in which a long strip of steel is passed through a series of rollers to gradually shape it into a desired profile. This technique is commonly used to produce steel sheets with complex shapes and profiles, such as corrugated roofing sheets or C-channel beams. Roll forming offers excellent precision and repeatability, making it a popular choice for producing large quantities of steel sheets with consistent dimensions. Overall, the choice of sheet metal rolling technique depends on the specific requirements of the application. Hot rolling is ideal for producing steel sheets with a uniform thickness and improved mechanical properties. Cold rolling is preferred for applications that require a high-quality surface finish and dimensional accuracy. Roll forming is suitable for creating steel sheets with complex shapes and profiles.

Q: What is the difference between a hot rolled and pickled steel sheet?: A hot rolled steel sheet is produced by heating the steel above its recrystallization temperature, typically around 1700°F (926°C), and then rolling the heated material into a desired shape or thickness. This process gives the steel a characteristic scale or oxide layer on its surface. On the other hand, a pickled steel sheet undergoes an additional step called pickling, which involves removing the scale or oxide layer that forms during the hot rolling process. Pickling is typically done by immersing the steel sheet in an acid bath, such as hydrochloric acid, to dissolve the scale. The main difference between a hot rolled and pickled steel sheet lies in the surface finish and cleanliness. A hot rolled steel sheet will have a rougher surface due to the presence of the scale, which can be visually unappealing and may require additional processing or finishing. In contrast, a pickled steel sheet will have a smoother and cleaner surface since the scale has been removed. Another difference is the corrosion resistance of the two types of steel sheets. The presence of the scale on hot rolled steel can make it more susceptible to corrosion, especially in humid or corrosive environments. Meanwhile, pickled steel has a better resistance to corrosion due to the removal of the scale and the subsequent application of a protective coating or treatment. In terms of applications, hot rolled steel sheets are commonly used in structural components, construction materials, and general fabrication where surface finish is not critical. Pickled steel sheets, on the other hand, are often preferred in industries such as automotive, appliances, and manufacturing, where a smooth and clean surface is desired for further processing or finishing. In summary, the difference between a hot rolled and pickled steel sheet lies in the surface finish, cleanliness, and corrosion resistance. While hot rolled steel has a rougher surface due to the presence of scale, pickled steel undergoes an acid bath to remove the scale, resulting in a smoother and cleaner surface. Pickled steel also offers better resistance to corrosion and is preferred in applications where a high-quality surface finish is required.

Q: Can steel sheets be used for heat transfer applications?: Yes, steel sheets can be used for heat transfer applications due to their high thermal conductivity and ability to withstand high temperatures. They are commonly used in various industries, such as HVAC systems, automotive manufacturing, and power generation, for efficient heat transfer and dissipation.

Q: Are steel sheets versatile in terms of design and customization?: Yes, steel sheets are highly versatile in terms of design and customization. They can be easily manipulated into various shapes, sizes, and patterns to suit a wide range of applications. Additionally, steel sheets can be painted, coated, or textured to achieve specific aesthetic and functional requirements, making them an excellent choice for designers and architects.

Q: How do steel sheets perform in terms of electromagnetic shielding?: Steel sheets are highly effective in terms of electromagnetic shielding due to their excellent conductivity and low permeability. They can effectively block and redirect electromagnetic waves, preventing their penetration and minimizing interference.

Q: Can steel sheets be used for soundproofing or insulation?: Yes, steel sheets can be used for soundproofing or insulation, but they are not as effective as other materials specifically designed for these purposes. Steel sheets have some natural soundproofing and insulating properties due to their density and ability to block sound and heat transfer to some extent. However, they are not as efficient as dedicated soundproofing or insulation materials such as acoustic panels or fiberglass insulation. Steel sheets can be used as an additional layer to improve the soundproofing or insulation properties of a structure, but they should be combined with other materials to achieve optimal results.

Q: Can the steel sheets be used for metal stamping?: Yes, steel sheets can be used for metal stamping. Steel is a commonly used material for metal stamping processes due to its durability and strength. The steel sheets are typically cut into specific shapes and sizes, and then undergo a stamping process where a die and punch set are used to form the desired shape on the steel sheet. This process can be used to create various products such as automotive parts, household appliances, and industrial components.

Q: What is the aging property of steel plates?: The aging of steel plate is usually due to the diffusion of carbon atoms and nitrogen atoms in the lattice, forming interstitial atoms, which leads to the solid solution strengthening of the steel plate.

Q: What are the different alloying elements used in steel sheets?: To enhance the properties and performance of steel sheets, various alloying elements are utilized. Some commonly employed alloying elements are as follows: 1. Carbon: Being the most crucial alloying element, carbon imparts strength and hardness to the steel. It also enhances its heat-treatability, making it suitable for diverse applications. 2. Manganese: For improved mechanical properties like strength and toughness, manganese is frequently added to steel sheets. It also aids in reducing brittleness. 3. Chromium: Steel sheets are enriched with chromium to augment their corrosion resistance. By forming a thin protective layer on the steel's surface, it prevents rusting and corrosion. 4. Nickel: Nickel is commonly incorporated into steel sheets to enhance their toughness and impact resistance. It also improves their ability to withstand extreme temperatures, rendering them suitable for high-temperature applications. 5. Silicon: The addition of silicon to steel sheets improves their strength and hardness. It also aids in deoxidizing the steel during the manufacturing process. 6. Vanadium: Vanadium serves as an alloying element in steel sheets to enhance strength, toughness, and heat resistance. It also refines the grain structure of the steel, making it more uniform and fine. 7. Copper: Copper is included in steel sheets to enhance corrosion resistance and thermal conductivity. It also improves the weldability and brazability of the steel. 8. Tungsten: Tungsten is utilized as an alloying element in steel sheets to enhance hardness, strength, and wear resistance. In small quantities, it is often added to improve cutting and drilling capabilities. These examples highlight just a few of the alloying elements commonly employed in steel sheets. The selection of alloying elements depends on the specific requirements of the application and the desired properties of the steel. Different combinations and concentrations of these elements can be employed to achieve a wide range of characteristics in steel sheets.

Q: What is the typical yield strength of steel sheets?: The typical yield strength of steel sheets can vary depending on the grade and type of steel being used. However, for mild steel sheets commonly used in construction and manufacturing, the typical yield strength is around 250 megapascals (MPa) or 36,000 pounds per square inch (psi). Higher strength steels, such as high-strength low-alloy (HSLA) steels or advanced high-strength steels (AHSS), can have yield strengths ranging from 300 to 600 MPa (43,500 to 87,000 psi) or even higher. It is important to note that these values are general estimates and specific steel grades may have slightly different yield strengths.

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