Customization: | Available |
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Type: | Seamless |
Material: | Carbon Steel |
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Discover the Hot Dip Galvanized Round Steel Pipe - a premium GI Pipe and Pre Galvanized Steel Pipe, also known as the Galvanized Tube. Engineered for excellence, this product combines durability with reliable performance, making it an essential component for a wide array of applications.
Galvanized welded steel pipes are a cornerstone in the world of construction and industrial manufacturing. Renowned for their robust nature, these hot-dip galvanized steel pipes find their place in various sectors including construction, machinery, and the coal mining industry. They are indispensable in the chemical sector, electric power supply, and railway vehicle manufacturing. Their applications extend to the automobile industry, highway and bridge construction, and even in the creation of containers and sports facilities. Agricultural and petroleum machinery, prospecting equipment, as well as greenhouse construction, all benefit from the use of these versatile pipes.
Galvanized steel pipes represent the pinnacle of welded steel pipes, featuring a protective hot-dip or electro-galvanized coating that significantly enhances their corrosion resistance and extends their lifespan. These pipes are versatile and widely utilized beyond standard low-pressure fluid transport for water, gas, and oil. They excel in the petroleum industry, particularly for offshore oil fields as oil well pipes and oil conduits. In the realm of chemical coking, they serve as oil heaters and condensers, and are integral to cooling systems, coal distillation washing oil exchangers, and the construction of trestle piles and mine tunnel supports, showcasing their adaptability and reliability in demanding applications.
Product name | Galvanized steel pipe |
Brand Name | KaiShuo Weiye |
Place of Origin | Tianjin, China |
Shape | Round |
Application | Construction, Machinery, Coal Mine, Chemical Industry, Electric Power, Railway Vehicles, Automobile Industry, Highways, Bridges, Containers, Sports Facilities, Agricultural Machinery, Petroleum Machinery, Prospecting Machinery, Greenhouse Construction |
Outer Diameter | 30 - 300 mm |
Thickness | 0.8 - 12.75 mm/ As your require |
Length | 12M, 6m, 6.4M, Customer's Request |
Standard | EN, BS, JIS, etc |
Certificate | API, ce, Bsi, RoHS, SNI, BIS, SASO, PVOC, SONCAP, SABS, sirm, tisi, KS, JIS, GS, ISO9001 |
Technique | ERW |
Grade | Q195/Q215/Q235/Q345/10#/20# |
Surface Treatment | Galvanized |
Tolerance | ±1% |
Processing Service | Welding, Punching, Cutting, Bending, Decoiling |
Oiled or Non-oiled | Non-oiled |
Invoicing | By theoretical weight |
Delivery Time | 8-14 days |
Hot-dip galvanized pipes are expertly crafted to achieve superior durability through an intricate process where molten metal reacts with the iron matrix, forming a robust alloy layer that bonds seamlessly with the coating. The hot-dip galvanizing process initiates with meticulous pickling to clear iron oxide from the steel pipe's surface. Following this, the pipe is submerged in a tank of aqueous ammonium chloride or zinc chloride solution, or a mixture of both, before being immersed in the hot dip bath. This method boasts uniform coating, exceptional adhesion, and a remarkably long service life. The substrate of the hot-dip galvanized steel pipe undergoes complex physical and chemical transformations with the molten plating solution, culminating in a corrosion-resistant zinc-iron alloy layer of compact structure. The alloy layer melds effortlessly with the pure zinc layer and the steel pipe substrate, ensuring formidable corrosion resistance.
Cold galvanized pipes, or electro-galvanized pipes, have a significantly thinner layer of zinc, only about 10-50g/m2, which greatly diminishes their corrosion resistance compared to their hot-dip counterparts. Owing to quality assurance, reputable manufacturers of galvanized pipes generally refrain from utilizing electro-galvanization (cold plating). This method is primarily used by smaller enterprises with outdated equipment, resulting in lower costs. Nonetheless, the Ministry of Construction has mandated the phasing out of cold galvanized pipes due to obsolete technology, particularly in water and gas applications. The zinc layer in cold galvanized steel pipes, being an electroplated layer, exists independently of the steel pipe substrate. It is thin and simply adheres to the substrate, making it prone to detachment, hence offering poor protection against corrosion.
Rust Removal Method
(1). Begin by applying a solvent to the steel surface to effectively eliminate any organic matter present.
(2). Proceed by utilizing rust-removal tools, such as a wire brush, to dislodge loose or inclined scale, rust, welding slag, among others.
(3). Implement the pickling method for thorough rust eradication.
Galvanizing is categorized into hot-dip and cold-dip methods. Hot-dip galvanizing offers superior resistance to rust, while cold-dip galvanizing tends to rust more readily.
Guidelines for Storing Galvanized Pipes:
Galvanized steel pipes should be stored in a clean and well-drained location, away from factories or mines emitting harmful gases or dust. It is crucial to clear the area of weeds and debris, maintaining the pipes in pristine condition. In the warehouse, avoid stacking with corrosive substances like acid, alkali, salt, or cement. Different square tube varieties must be stacked separately to prevent confusion and contact corrosion. Large sections, rails, steel plates, large-diameter steel pipes, and forgings can be stored outdoors.
Smaller square pipes, thin steel plates, steel strips, silicon steel sheets, small-diameter or thin-walled steel pipes, and high-value, easily corroded metal products should be stored indoors. Choose a warehouse based on geographic conditions, favoring an ordinary closed warehouse with a roof, walls, secure doors and windows, and adequate ventilation.
Benefits of Galvanized Pipes:
1. Cost-Efficiency: Hot-dip galvanized rust prevention is more economical compared to other protective coatings.
2. Exceptional Durability: Hot-dip galvanized steel pipes feature a glossy surface, uniform zinc layer, without leak plating or dripping, offering strong adhesion and outstanding anti-corrosion properties. The anti-rust coating can endure over 50 years without maintenance; in urban or coastal areas, it reliably lasts 20 years without maintenance.
3. Exceptional Reliability: Experience peace of mind with our galvanized steel pipe, where the robust metallurgical bond between the galvanized layer and the steel surface ensures this coating becomes an integral part of the pipe. This exceptional integration translates into a more durable and reliable coating that stands the test of time.
4. Excellent Coating Toughness: Our galvanized layer boasts a unique metallurgical structure that not only enhances its strength but also allows it to endure mechanical damage during both transportation and application. This ensures your product remains in prime condition throughout its journey and use.
5. Comprehensive Protection: Our product provides complete coverage, ensuring every inch of your plated parts receives the full benefits of galvanization. This means even the most challenging areas, such as depressions, sharp corners, and concealed spots, receive maximum protection.
6. Efficient and Cost-Effective: The galvanizing process offers a swift and labor-efficient solution compared to traditional coating techniques. It significantly reduces the time and resources required for painting post-installation, streamlining your construction projects and enhancing overall efficiency.
Stainless steel bar/rod |
Stainless steel coil |
Stainless steel pipe/tube |
Stainless steel square/angle bar |
Galvanized steel sheet/plate |
Galvanized steel coil |
Galvanized steel pipe/tube |
Carbon steel sheet/plate |
Carbon steel pipe/tube |
etc. |
Our packaging options cater to all your needs, offering standard seaworthy packing designed for optimal protection during transit. Alternatively, choose a customized packing solution tailored specifically to your unique requirements, ensuring your product arrives in pristine condition.
1. What is your payment terms?
KaiShuo Weiye Steel prefers 30%TT before inspection and the rest 70% against BL. However, our price term is negotiable. Multiple payment terms are available from us.
2. Which payment method can I choose?
KaiShuo Weiye Steel accepts all types of secured payment methods. Bank transaction, Trading Assurance, Paypal and etc are all available from us. Please feel free to contact us about your preferred payment method.
3. Is sample providing service available?
KaiShuo Weiye Steel provides free samples to our clients. We usually also cover the sample shipping cost. Please feel free to order a sample from us.
4. Is customization available?
KaiShuo Weiye Steel's expert equipment and highly-trained workers are capable of manufacturing highly customized products. Please feel free to discuss with us about your customized requirements, we can surely meet your needs.
5. What products and materials do you supply?
KaiShuo Weiye Steel mainly supplies all catalogs and all grades of steel and stainless steel products. Coils, strips, sheet, pipes, bars, beams, flanges and other customized products. Tin coating, Ti coating, galvanization and other surface treatments are also available.
Other than steel products,KaiShuo Weiye Steel also has high production capacity and holds large ready stock of all kinds of copper and aluminum products.
Please feel free to consult us about any related products above, we can surely meet your requirements.
6. Why should I choose you?
KaiShuo Weiye Steel Industry company has deeply engaged in metal material market for over 15 years. We established perfect reputation world-widely. Craftsmanship spirit is the fundamental of KaiShuo Weiye Steel since we are established. KaiShuo Weiye Steel keeps our products as highest quality and lowest price to maintain our self competitive. Proving our clients with best trading experience is the goal we always insist of.
7. How can I make sure you are a reliable supplier?
KaiShuo Weiye Steel is willing to provide our copies of company registration certificate, registration and Chinese exporting registration for you to view. These certificates are under Chinese Trading Law effect. They can help you officially check our company's capability and status.
On the products' side, certificates as Mill Test Certificate(MTC), Third Party Material Quality Conformity Certificate and other required certificates are available before the order. Samples are also available from us for you to test in your own testing facility. KaiShuo Weiye Steel also supports third-party inspection before shipping. KaiShuo Weiye Steel also welcomes a company tour for you to check our factory status.