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ProductsFounded in 2000, Yong Li Steel (Tianjin) Co., Ltd. is a modernized steel enterprise integrating steel production, processing, sales and service, rooted in Daqiuzhuang, Tianjin, an important steel industry base in northern China.
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About usFounded in 2000, Yong Li Steel (Tianjin) Co., Ltd. is a modernized steel enterprise integrating steel production, processing, sales and service, rooted in Daqiuzhuang, Tianjin, an important steel industry base in northern China.
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CasesFounded in 2000, Yong Li Steel (Tianjin) Co., Ltd. is a modernized steel enterprise integrating steel production, processing, sales and service, rooted in Daqiuzhuang, Tianjin, an important steel industry base in northern China.
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Contact UsFounded in 2021, Yong Li Steel (Tianjin) Co., Ltd. is a modernized steel enterprise integrating steel production, processing, sales and service, rooted in Daqiuzhuang, Tianjin, an important steel industry base in northern China.
Execution standard for hot-dip galvanized steel sheet:
GB/T 3091-2015
GB/T 2518-2008
ISO 6935:2014
ASTM A123/A123M-20
Execution standard for galvanized round pipes:
GB/T 3091-2015
GB/T 2518-2008
ISO 6935:2014
ASTM A123/A123M-20
Steel plates are produced by pressure processing, rolling steel into flat products with uniform thickness and regular shape. We can provide services such as threading, cutting, reducing, chamfering, reducing diameter, color banding, modifying markings, oil spraying, painting, packaging, and crating for export processing.
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Hot-dip galvanized steel sheet
Descriptions
Product Introduction
Hot-dip galvanized steel sheet is a high-performance metal sheet made from ordinary steel sheet as a base material through a hot-dip galvanizing process. During the production process, the cleaned and degreased steel sheet is immersed in molten zinc at a temperature of approximately 450℃ - 480℃, causing a complex physical and chemical reaction between the steel sheet surface and the molten zinc, forming a multi-layer protective structure composed of a pure zinc layer and a zinc-iron alloy layer. This unique process allows hot-dip galvanized steel sheet to combine the high strength of steel sheet with the excellent protective performance of the zinc layer, making it the preferred material in many fields.
Product Advantages
Excellent Corrosion Resistance
The core advantage of hot-dip galvanized steel sheet lies in its superior corrosion resistance. After the zinc layer comes into contact with oxygen in the air, it quickly forms a dense layer of zinc oxide film. This film acts like a strong armor, effectively isolating the steel sheet from external humid air, rainwater, and corrosive chemicals. In ordinary atmospheric environments, hot-dip galvanized steel sheet can remain in good condition for a long time and is not easy to rust; even in areas with severe industrial pollution, facing acid gas erosion, or in high-humidity, high-salinity coastal environments, the zinc layer can continue to provide protection, significantly extending the service life of the steel sheet. Relevant data shows that under the same conditions, the corrosion resistance of hot-dip galvanized steel sheet can reach 3-5 times that of ordinary steel sheet, greatly reducing the cost of later maintenance and replacement.
Good Mechanical Properties and Processing Adaptability
The hot-dip galvanizing process does not significantly affect the mechanical properties of the steel sheet itself; the steel sheet still maintains its high strength, good toughness, and rigidity. Whether it is bearing heavy pressure, tension, or dealing with torsional deformation, hot-dip galvanized steel sheet can maintain a stable structure and is suitable for various load-bearing and support scenarios. At the same time, it has excellent processing performance and can be easily processed into various complex shapes of components through cutting, welding, stamping, bending, etc. For example, during welding, the zinc layer of hot-dip galvanized steel sheet can prevent oxidation of the welding area to a certain extent, improving welding quality; during stamping, its surface zinc layer is not easy to fall off, ensuring the appearance and protective performance after processing.
Economical and Practical, and Aesthetic
Although the initial purchase cost of hot-dip galvanized steel sheet is slightly higher than that of ordinary steel sheet, its extra-long service life and extremely low maintenance frequency make it more cost-effective over its entire life cycle. In long-term use, it reduces the manpower and material resources consumed by frequent material replacement, as well as the potential risk costs caused by structural damage. In addition, the surface of hot-dip galvanized steel sheet presents a uniform, silvery-white luster, with a certain degree of decoration. It does not require additional complex surface treatment and can be directly applied to occasions with appearance requirements, such as building decoration and advertising displays, combining practicality and aesthetics.
Industry Applications
Construction Industry
Steel Structure Engineering
In the construction of steel structures for industrial plants, warehouses, and large-scale commercial complexes, hot-dip galvanized steel sheet is widely used to manufacture steel beams, steel columns, purlins, and other components. Its high strength and excellent corrosion resistance can effectively support the building structure, withstand natural loads such as wind, snow, and earthquakes, and maintain stability for a long time in complex outdoor environments, avoiding structural safety issues due to rust. For example, in the construction of factories in coastal areas, steel structures made of hot-dip galvanized steel sheet can effectively resist sea wind and salt spray erosion, ensuring the safe use of the factory for decades.
Building Envelope System
Hot-dip galvanized steel sheet is an ideal choice for roofing and wall materials. Roll-formed hot-dip galvanized steel sheet, formed through a roll-forming process, creates sheet materials with wave-shaped, trapezoidal, and other shapes. It is lightweight, high-strength, and easy to install, and is widely used in the roofs and walls of industrial plants and warehouses; color-coated hot-dip galvanized steel sheet adds a color coating to the zinc layer, not only improving the decorative effect but also further enhancing weather resistance. It is often used in the exterior wall decoration of commercial and public buildings, giving buildings rich colors and a unique appearance.
Automotive Manufacturing Industry
In automobile production, hot-dip galvanized steel sheet is mainly used in easily corroded parts such as the vehicle underbody, doors, and roof. During vehicle operation, these parts are long-term exposed to humid and muddy splash environments, and ordinary steel sheets are very prone to rust. The excellent corrosion resistance of hot-dip galvanized steel sheet can effectively protect the vehicle body structure and extend the service life of the vehicle; at the same time, its good stamping formability can meet the processing requirements of complex vehicle appearance shapes, ensuring smooth vehicle lines and structural accuracy, improving vehicle safety while also enhancing the vehicle's appearance and durability.
Home Appliance Manufacturing Industry
Hot-dip galvanized steel sheet is a commonly used material for the outer shells of home appliances such as refrigerators, air conditioners, and washing machines. On the one hand, its surface is flat, smooth, and evenly colored, and after simple processing, it can present a beautiful appearance, meeting the visual requirements of home appliance products; on the other hand, the corrosion resistance of hot-dip galvanized steel sheet can prevent the outer shell from rusting and damage due to humid air, cleaning agent residue, etc., during daily use, effectively protecting internal components, improving product quality and service life, and providing consumers with more reliable home appliance products.
Transportation Facilities Industry
Highways and Bridges
In highway and bridge construction, hot-dip galvanized steel sheet is used to make bridge railings, crash barriers, traffic sign poles, and other components. Bridges are long-term exposed outdoors, subject to wind, sun, and rain erosion. The corrosion resistance of hot-dip galvanized steel sheet ensures that these components operate stably in harsh environments, ensuring bridge traffic safety; its high-strength characteristics also allow the bridge structure to remain stable when bearing vehicle loads, extending the service life of the bridge.
Rail Transit
In the field of rail transit such as subways and high-speed rail, hot-dip galvanized steel sheet is used in vehicle body structures, platform screen doors, and the outer shells of rail communication and signaling equipment. It can meet the strict requirements of rail transit for material strength and weather resistance, and can also achieve the manufacturing of complex structures through good processing performance, providing reliable guarantees for the safe and efficient operation of rail transit.
Agriculture and Animal Husbandry
Hot-dip galvanized steel plays a vital role in the construction of agricultural greenhouses, livestock fences, and other facilities. Agricultural environments are often humid and may come into contact with corrosive substances such as fertilizers and pesticides, causing ordinary steel to deteriorate easily. Hot-dip galvanized steel, with its excellent corrosion resistance, can be used for extended periods in such environments, ensuring the structural stability of greenhouse frames, livestock fences, and other facilities, reducing maintenance costs, and creating reliable conditions for crop growth and livestock farming.
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