Galvanized pipes are steel pipes that have been dipped in a protective zinc coating to prevent corrosion and rust. Galvanized piping was commonly installed in homes built before 1960. When it was invented, galvanized pipe was an alternative to lead pipe for water supply lines.
The steel used for Carbon Steel Pipe are steel sheets or strips, which are divided into furnace welded pipes, electric welded (resistance welded) pipes and automatic arc welded pipes due to their different welding processes.
Stainless Rectangle Pipe is a kind of hollow long round steel, which is widely used in industrial transmission pipelines and mechanical structural components such as petroleum.
We supply high-quality Seamless Steel Pipe, carbon steel pipe,alloy steel pipe and so on. It keeps a large number of stocks all year round with complete types and specifications.
GI Rectangular Tube's surface is hot-dip plated or galvanized layer welded steel pipe. Hot-dip galvanized Tube can increase the corrosion resistance of steel pipes and prolong the service life.
Galvanized Round Pipe is a welded steel pipe with a hot-dip or electro-galvanized layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and prolong their service life.
Benefits of Galvanized Steel Pipe
Exceptional Durability
Galvanized steel pipes are known for their remarkable durability. The zinc coating acts as a sacrificial layer, protecting the underlying steel from corrosion and extending the lifespan of the pipes.
Corrosion Resistance
The primary benefit of galvanized steel pipes is their superior resistance to corrosion. They can withstand harsh environmental conditions, including moisture, chemicals, and even underground exposure.
Longevity
Due to their excellent corrosion resistance, galvanized steel pipes have a significantly longer lifespan compared to regular steel pipes. They can last up to 50 years or more, reducing the need for frequent replacements.
Low Maintenance
Galvanized steel pipes require minimal maintenance over their lifespan. The zinc coating acts as a self-healing barrier, ensuring that minor scratches or abrasions do not compromise the integrity of the pipe.
Versatility
Galvanized steel pipes are suitable for a wide range of applications, including water supply systems, plumbing, gas pipelines, outdoor structures, fencing, and more. They are compatible with various fittings and connectors, providing flexibility in installation.
Cost-Effective
Although galvanized steel pipes may have a higher initial cost compared to some other materials, their long lifespan and low maintenance requirements make them a cost-effective choice in the long run.
Why Choose Us
Strong Production Capacity
Tangshan Xunzhuo International Trade Co., Ltd. is a steel group company integrating the steel industry and international trade. We have 7 production lines, more than 500 employees, and a monthly production capacity of 100,000 tons, completing orders for customers efficiently and timely.
Complete Range of Products
The company's main products include galvanized steel coils, galvalume steel coils, color-coated steel coils, corrugated steel roof panels, cold-rolled hard steel, aluminum color-coated coils, tinplate, TFS and other plates as well as angle steel, channel steel, H-shaped steel, Wire rod, rebar/rebar, steel pipe, steel strip, etc.
Strict Quality Inspection
Professional technical quality inspection personnel conduct quality inspections on the products ordered by customers. From production, packaging to transportation, they carefully conduct quality tracking throughout the entire process to ensure that customers receive satisfactory products.
Professional Service
We have a professional service team and a complete sales process. All personnel in each position of the company have more than many years of foreign work experience. The overall team has professional knowledge, contract performance capabilities and risk resistance capabilities to provide customers with professional and high-quality services.
Ordinary steel pipes are less resistant to corrosion than galvanized steel pipes. Zinc plating refers to the surface of steel pipes being galvanized. It may be welded pipes or seamless pipes. Seamless refers to the manufacturing process of steel pipes, with welding and no Sewing points. Galvanized pipes are resistant to corrosion and seamless pipes can withstand higher pressures. Galvanized steel pipe is not easy to rust due to zinc protection.
Galvanized steel pipes are lighter than seamless steel pipes. If it is used for balconies, it is best to use galvanized light pipes. Seamless steel pipes are not suitable for balcony. Because the seamless steel pipe wall thickness, the natural weight is heavy, and the cost of the seamless steel pipe is higher than the cost of the galvanized steel pipe, and the galvanized steel pipe is very durable, and the service life is far more than the seamless steel pipe. If the quality is too good, it should not be a problem for more than 20 years. Of course, the welding and paint should be done well, and it will not affect the service life of the galvanized steel pipe. Use difference: galvanized steel pipe is generally used for fences, fences, guardrails, balcony guardrails. Widely used in municipal engineering, roads, factories, schools, development zones, gardens, plazas, residential areas and other places.
Galvanized steel pipes are divided into hot-dip galvanizing and cold-galvanizing. The hot-dip galvanizing is to soak the pipe in the high-temperature zinc liquid so that the zinc penetrates into the surface of the steel. The surface of the pipe has a thick zinc layer and corrosion resistance higher than that of cold-dip galvanizing. Of course, the price is also higher than that of cold-dip zinc. Cold-dip zinc is actually an electro-galvanized pipe. A layer of zinc adheres to the surface of the tube by electroplating chemical reaction, but the zinc layer is thin and easily falls off. The price is cheaper.
The price of both is higher than that of ordinary steel pipes. After special spraying on the surface of galvanized pipes, the anti-corrosion performance is dozens of times higher than that of iron pipes.
Hot-dip galvanized steel pipe
Hot-dip galvanized steel pipe is characterized by uniform coating, good adhesion, and long service life. Coiled galvanized strips are often used for zinc supplementation. Hot-dip galvanized steel pipe is a method of alloying molten steel and iron-based materials to form an alloy. It is a new type of hot-dip galvanized steel pipe that combines steel-based materials and coating materials. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is then treated with ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride. Clean it before sending it to the hot-dip coating tank. In this case, the surface of the steel pipe undergoes complex physical and chemical reactions with the liquid metal to form a corrosion-resistant dense zinc-iron alloy. The coating is completely integrated with the pure zinc layer and the steel pipe substrate and has good corrosion resistance.
Cold galvanized steel pipe
The zinc layer of cold-dip galvanized steel pipe is an electroplated coating separated from the steel pipe base material. The thickness of the galvanized layer is small, the adhesion to the steel pipe substrate is strong, it is easy to fall off, and the corrosion resistance is poor. Therefore, in civil buildings, cold-galvanized steel pipes cannot be used as water supply pipes. Cold galvanizing refers to galvanizing, and the amount of galvanizing is very small, generally between 10-50 g/m2, but its corrosion resistance is much worse than that of hot-dip galvanized pipes.
Galvanized Steel Pipe Manufacturing Process
Material Selection
The process begins with carefully selecting high-quality steel, typically low carbon steel, which is known for its strength and malleability.
Pipe Formation
The selected steel undergoes a series of processes, including cutting, bending, and shaping, to form pipes of desired dimensions. This step ensures that the pipes meet specific industry requirements and project specifications.
Surface Preparation
To prepare the pipe surface for galvanization, it goes through a rigorous cleaning process to remove any impurities, such as dirt, grease, and oxides. This ensures optimal adhesion of the zinc coating.
Galvanization
After the surface of the steel pipe is pretreated, it can be galvanized. There are two methods of galvanizing: hot-dip galvanizing and electro-galvanizing. Hot-dip galvanizing is to immerse the steel pipe in molten zinc, so that the zinc reacts with the surface of the steel pipe to form a layer of zinc. Electrogalvanizing is to immerse the steel pipe in an electrolyte solution containing zinc ions, and through the action of electric current, the zinc ions are reduced to a zinc layer on the surface of the steel pipe.
Cooling and Inspection
After galvanization, the pipes are carefully cooled and inspected for uniformity, adhesion, and thickness of the zinc coating. This step ensures the quality and durability of the finished product.
Packaging
Packaging galvanized steel pipe. It is usually packed in plastic bags or cartons to protect the zinc layer on the surface of the steel pipe from being damaged.
Applications in solar energy
Solar panels have a large mass of 20-24kg to ensure that the system is not affected by the effects of storms or high winds. Therefore, the support frame must be solid and capable of withstanding large loads and wind levels of 10 and 12 in stormy weather. In addition, the frames that support the solar system are placed outside and are often affected by the weather, so they must resist corrosion.
Thanks to its stable, solid, high-strength, load-bearing, and good-bearing structure, Galvanized steel can meet all the above requirements in almost all materials. The zinc coating on the outside of the steel pipes has a comprehensive protection effect, increasing the long-term use of the frame system. Therefore, galvanized steel, especially pipe, box, and V-shaped steel, is often chosen as frames for solar power systems.
Application in agriculture
Galvanized steel pipe has good rust resistance, a variety of sizes, and is easy to shape and install, so it is widely used in irrigation systems.
Black and hot-dip galvanized steel pipes are also widely used in animal husbandry. Large steel pipes are used to make feed or waste pipes for livestock and poultry.
In the fishery, fish farming cages are made from hot-dip galvanized steel pipes, replacing bamboo cages, overcoming limitations in rust resistance, life expectancy, and cage breakage when there are extensive underground waves.
Applications in plumbing
Steel pipes are widely utilized in water supply and drainage systems, high-pressure plumbing installations, or outdoor water supply networks. The nature of these projects all need large load capacity, easy to bend and shape according to the terrain and installation location, so galvanized steel pipe is the most appropriate option.
Square or rectangular steel pipes are used for ventilation systems, assembling house frames, scaffolding, bearing trusses,...
Applications in telecommunications
The telecommunications system is the basis of social communication. Many telecommunications forms utilize galvanized steel pipes to produce public lighting, ultrasonic pile systems, broadcasting piles, telecommunications poles, phone wiring, equipment boxes,...
Application in construction
The application of galvanized steel pipes in the construction field must be mentioned as the critical materials for housing and civil works such as rails, gutters, fences,... These steel pipes are shiny and galvanized, have aesthetics and durability, and are suitable for outdoor applications.
The Main Material of Galvanized Pipe
Carbon steel
Carbon steel is the most common gi pipe material. It is composed of an iron alloy with a high carbon content and has good mechanical properties and weldability. During the manufacturing process of carbon steel galvanized pipes, the surface of the carbon steel pipe is first pickled to remove oil stains and oxides, and then a layer of zinc is formed on the surface of the steel pipe through the hot-dip galvanizing process, thereby improving the corrosion resistance of the steel pipe. performance.
Alloy steel
Alloy steel is a type of steel composed of iron and other alloying elements. It changes the structural structure and properties of steel by adding alloy elements, such as molybdenum, chromium, nickel, etc., thereby improving the strength, hardness, wear resistance and other characteristics of steel pipes. Alloy steel galvanized pipes are usually used in situations that withstand high temperatures, high pressures or special working conditions, and have good corrosion resistance and high temperature resistance.
Aluminum
Galvalume pipe is a type of steel pipe made of aluminum. Aluminum is lightweight, corrosion-resistant, and has good thermal conductivity. Aluminum galvanized pipes are often used in construction, transportation and other fields to reduce structural loads and improve the overall performance of buildings.
Post-Processing and Maintenance of Galvanized Steel Pipes
Surface treatment of galvanized steel pipes
Galvanized steel pipes are already galvanized during production, which provides them with the first barrier against corrosion. However, the steel pipe still needs further surface treatment before installation and use. This includes, but is not limited to, removing oil, dust, and other impurities from the surface of the steel pipe. If these impurities are not removed, they may affect the galvanized layer of the steel pipe and accelerate its corrosion.
Cutting and processing of galvanized steel pipes
When cutting and processing galvanized steel pipes, specialized tools and techniques are required to avoid damage to the galvanized layer. For example, use a specialized cutter or saw blade to cut steel pipes instead of a regular saw blade or grinding wheel. In addition, during the processing process, it is also necessary to avoid scratches or impacts on the surface of the steel pipe, which may become the starting point of corrosion.
Connection of galvanized steel pipes
The connection of galvanized steel pipes is also a link that needs attention. Common connection methods include welding, threaded connection, and flange connection. When selecting a connection method, factors such as the diameter, wall thickness, and usage environment of the steel pipe need to be taken into consideration. For example, for steel pipes with larger diameters, flange connections are usually used; while for steel pipes with smaller diameters, threaded connections can be selected. During the connection process, it is also necessary to ensure the sealing and tightness of the connection to avoid leakage or looseness.
Anti-corrosion treatment of galvanized steel pipes
Although galvanized steel pipe itself already has certain anti-corrosion capabilities, additional anti-corrosion treatment is still required in some special usage environments, such as humid, acid-base, and other environments. For example, measures such as applying anti-corrosion paint or wrapping anti-corrosion tape on the surface of steel pipes can be used to enhance the anti-corrosion capabilities of steel pipes.
Regular inspection and maintenance of galvanized steel pipes
Galvanized steel pipes require regular inspection and maintenance during use. This includes checking whether the surface of the steel pipe is rusted, scratched, or otherwise damaged; checking whether the connections are tight and sealed; and checking whether the steel pipe is deformed or bent. Once a problem is discovered, it should be dealt with and repaired in time to avoid further deterioration of the problem.
Storage and maintenance of galvanized steel pipes
Galvanized steel pipe also requires proper storage and maintenance when not in use. Steel pipes should be stored in a dry, ventilated place away from moisture or direct sunlight. At the same time, there should be a certain distance between steel pipes to avoid collision or extrusion. Installed galvanized steel pipes should also be cleaned and maintained regularly to extend their service life.
Environmental protection treatment of galvanized steel pipes
With the increasing awareness of environmental protection, the environmental protection treatment of galvanized steel pipes has become more and more important. When disposing of scrap galvanized steel pipes, relevant environmental regulations and standards need to be followed to avoid environmental pollution. For example, scrap steel pipes can be recycled and reused, or they can be treated harmlessly through professional processing agencies.
Our Factory
Langzo Steel is located in the Chinese steel base-Boxing city, Shandong Province, China which is a steel group company integrating steel industry and international trade, our subsidiaries are: Shandong Langzo New Materials Co., Ltd.; Vanten Metal Corporation Limited and Tangshan Jingjin ColdRolled Galvanizing Co.. Ltd.etc.Our production capacity is about 100000 tons per month with 7 production lines.
FAQ
Hot Tags: galvanized steel pipe, China galvanized steel pipe manufacturers, suppliers, factory, opaque flat products, short h beam, indoor flat products, ceiling mounted flat products, corrosion resistant flat products, h beam for elevators
