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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 galvanized flat steel:
Chinese Standard
GB/T 2101-2018
GB/T 700-2006
GB/T 1591-2008
GB/T 2518-2019
GB/T 13788-2008
International Standard
ISO 1461:2009
ASTM A123/A123M-05
ISO 1461:2022
ASTM A653/A653M-2
BS EN 10142:1996
JIS G 3312:2019
Hot-dip galvanized flat steel is a metal profile made by hot-dip galvanizing process using ordinary flat steel as the base material. We can provide export processing services including threading, cutting, end reduction, chamfering and diameter reduction, color banding, label modification, oil painting, packaging, and packing.
Category：
Keywords：
Zinc-coated flat steel
Descriptions
Product Introduction
Hot-dip galvanized flat steel is a metal profile processed from ordinary flat steel as the base material through the hot-dip galvanizing process. During production, the flat steel undergoes strict pre-treatment, including cleaning, degreasing, and pickling, to thoroughly remove surface impurities and oxide scale. It is then immersed in molten zinc liquid at approximately 450℃ - 480℃. During this process, the surface of the flat steel undergoes complex physical and chemical reactions with the zinc liquid, 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 flat steel to retain the original performance advantages of flat steel while possessing excellent corrosion resistance.
Product Advantages
Better Corrosion Resistance
A significant advantage of hot-dip galvanized flat steel lies in its excellent corrosion resistance. In a natural environment, the zinc layer rapidly reacts with oxygen to form a dense and stable zinc oxide film. This film acts like a strong armor, effectively isolating the flat steel from external humid air, rainwater, and corrosive chemicals. In a normal atmospheric environment, hot-dip galvanized flat steel can maintain good condition for a long time and is not prone to rust; even in heavily industrially polluted areas, 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 flat steel. According to relevant data, under the same environmental conditions, the corrosion resistance life of hot-dip galvanized flat steel can be 3 to 5 times that of ordinary flat steel, significantly reducing subsequent maintenance and replacement costs.
Good Mechanical Properties and Processing Adaptability
The hot-dip galvanizing process does not significantly affect the mechanical properties of the flat steel itself; its original high strength, good toughness, and bending resistance due to its rectangular cross-section are retained. Whether used as load-bearing components in building structures or for manufacturing parts in machinery, hot-dip galvanized flat steel can stably withstand pressure, tension, and bending forces, ensuring the safe operation of structures and equipment. At the same time, hot-dip galvanized flat steel still possesses good processing performance, allowing for easy completion of conventional processing operations such as cutting, welding, drilling, and bending. During processing, the zinc layer is not easily detached, which does not affect the processing quality and subsequent service performance of the flat steel, making it convenient for construction personnel to process it into various shapes and sizes of components.
Easy Installation and Both Aesthetic and Practical
Hot-dip galvanized flat steel has a regular shape and versatile installation methods, allowing quick connection to other structural components through welding, bolted connections, riveting, and other means. On construction sites, personnel can flexibly choose appropriate connection methods based on actual engineering conditions and design requirements, improving installation efficiency. Additionally, the surface of hot-dip galvanized flat steel exhibits a uniform, silvery-white glossy finish, possessing certain decorative qualities. It can be directly applied to occasions requiring an aesthetic appearance without complex additional surface treatment. Its beautiful appearance not only meets functional needs but also adds a sense of neatness and texture to buildings, equipment, etc., combining practicality with aesthetics.
High Cost-Effectiveness
Although the initial procurement cost of hot-dip galvanized flat steel is slightly higher than that of ordinary flat steel, its exceptionally long service life and extremely low maintenance frequency give it a higher cost-effectiveness over its entire life cycle. During long-term use, hot-dip galvanized flat steel reduces the human and material consumption caused by frequent material replacement, as well as the potential risk costs due to structural damage. In projects with high demands for material durability, choosing hot-dip galvanized flat steel can effectively reduce overall costs in the long run, bringing better economic benefits to users.
Industry Applications
Construction Industry
Steel Structure Connection and Support: In steel structure buildings, hot-dip galvanized flat steel is often used to make connecting plates for steel beams and columns, enhancing the connection strength and stability of the structure; it can also serve as a component of support systems, bearing horizontal and vertical load transfers. Its excellent corrosion resistance ensures the long-term safety of building structures in complex outdoor environments, especially suitable for construction projects in coastal areas or heavily industrially polluted regions.
Architectural Decoration and Protection: Hot-dip galvanized flat steel can be used to make stair treads, handrails, balcony railings, and other architectural decorative and protective components. Its aesthetic appearance and good corrosion resistance can not only add a modern and industrial style to buildings but also ensure long-term use without damage, providing safe and reliable protective facilities. Meanwhile, in the roof and wall decorations of some buildings, hot-dip galvanized flat steel can also serve as linear decorative components, enhancing the overall aesthetic appeal of the building.
Power Engineering Industry
Grounding Systems: Hot-dip galvanized flat steel is the preferred material for making grounding electrodes and grounding wires in power engineering. Its good conductivity ensures the stable operation of grounding systems, safely introducing grounding currents from electrical equipment into the earth; its better corrosion resistance ensures that the grounding system is not damaged by corrosion during long-term use, effectively safeguarding the safety of equipment and personnel. Whether it is substations, transmission lines, or grounding systems of various buildings, hot-dip galvanized flat steel is widely used.
Cable Trays and Supports: In cable laying projects, hot-dip galvanized flat steel is used to make the frames and supports for cable trays. Its robust structure can bear the weight of cables, providing reliable support and protection for cables, preventing them from external damage; at the same time, its corrosion-resistant properties make it suitable for various complex laying environments, ensuring that cable trays and supports remain stable during long-term use, and guaranteeing the orderly laying and safe operation of cables.
Agriculture and Animal Husbandry
In the construction of agricultural greenhouses, breeding fences, and other facilities, hot-dip galvanized flat steel plays an important role. Agricultural environments have high humidity and may come into contact with corrosive substances such as fertilizers and pesticides, making ordinary steel highly susceptible to damage. Hot-dip galvanized flat steel, with its excellent corrosion resistance, can be used for a long time in such environments, ensuring the structural stability of greenhouse frameworks, breeding fences, and other facilities, and reducing maintenance costs. For example, an agricultural greenhouse framework built with hot-dip galvanized flat steel can withstand wind and rain, creating a reliable environment for crop growth; breeding fences using hot-dip galvanized flat steel not only ensure the sturdiness of the fence but also avoid the impact of rust on its service life, providing a safe space for livestock breeding.
Municipal Engineering and Infrastructure Construction
Urban Pipeline Support: In the construction of urban water supply and drainage, gas, and heating pipelines, hot-dip galvanized flat steel can be used to make pipe supports and fasteners. Its corrosion resistance can adapt to complex underground environments such as humidity and acids and alkalis, ensuring the long-term stability of the pipeline support structure and guaranteeing the normal operation of urban infrastructure.
Municipal Facilities: Hot-dip galvanized flat steel is also often used to make municipal road guardrails, streetlight pole brackets, bus stop frames, and other municipal facilities. Its beautiful and durable characteristics not only improve the overall image of the city but also allow for long-term use in outdoor environments, reducing the maintenance and replacement frequency of municipal facilities and lowering urban management costs.
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