Customization: | Available |
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Type: | Seamless |
Material: | Carbon Steel |
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Discover the robust and versatile Hot Dip Galvanized Round Steel Pipe, also known as GI Pipe or Pre Galvanized Steel Pipe. This premium Galvanized Tube is engineered to meet diverse industrial needs with precision and durability.
Our Galvanized welded steel pipe is a cornerstone in the world of industrial manufacturing. Hot-dip galvanized steel pipes are indispensable across a vast array of sectors, including construction, machinery, coal mining, chemicals, electric power, railway vehicles, automotive industry, highways, bridges, containers, sports facilities, agricultural and petroleum machinery, prospecting equipment, greenhouse construction, and beyond. They stand as an enduring solution in the diverse landscape of modern infrastructure.
Galvanized steel pipe, renowned for its durability, is a welded steel pipe featuring either a hot-dip galvanized or electro-galvanized coating that significantly enhances its corrosion resistance and extends its lifespan. These versatile pipes serve a multitude of purposes, ranging from general low-pressure fluid conveyance like water, gas, and oil to specialized applications in the petroleum industry, such as oil well pipes and oil transport pipelines, especially in offshore fields. They are essential components in chemical coking equipment, including oil heaters and condensers, coolers, coal distillation washing oil exchangers, and are crucial for trestle piles and support structures in mine tunnels, among other critical uses.
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 represent the pinnacle of protective metal layering. This process artfully combines molten metal and the iron matrix to form a sturdy alloy layer, ensuring a strong bond between the matrix and the coating. Initially, the steel pipe undergoes pickling to eliminate iron oxides. It is then immersed in an ammonium chloride or zinc chloride aqueous solution, or a combination thereof, before being dipped in the hot galvanizing bath. The major advantages of hot-dip galvanizing include an even coating, superior adhesion, and long-lasting service life. The interaction of the pipe substrate with the molten plating solution results in a zinc-iron alloy layer with excellent corrosion resistance, seamlessly integrating with both the pure zinc layer and the steel pipe substrate for unparalleled durability against corrosion.
Cold galvanized pipes, known for their electro-galvanization, feature a minimal zinc coating of only 10-50g/m2, which significantly reduces their corrosion resistance compared to hot-dip varieties. Reputable manufacturers typically avoid using electro-galvanization due to its subpar quality, leaving it to smaller enterprises with outdated facilities. Thus, these pipes come at a lower cost. In line with maintaining quality, the Ministry of Construction has phased out cold galvanized pipes, particularly for applications in water and gas transportation. The electroplating process results in a zinc layer that is merely a superficial coating on the steel substrate, prone to detachment and offering weak protection against corrosion.
Rust Removal Methods
(1). Begin by employing a solvent to thoroughly cleanse the steel's surface, removing any organic contaminants.
(2). Proceed with mechanical tools, such as a wire brush, to effectively dislodge loose or inclined scale, rust, and welding slag.
(3). Conclude with a pickling method for comprehensive rust removal.
Galvanizing Techniques: Hot-dip galvanizing provides robust rust resistance, whereas cold-dip galvanizing tends to rust more readily.
Storage Guidelines for Galvanized Pipes:
Optimal storage of galvanized steel pipes involves selecting a site or warehouse that is clean, well-drained, and distant from pollution sources like factories and mines. The area must be free of weeds and debris, ensuring pipes remain uncontaminated. Acidic, alkaline, salty, or cement materials should not be stored alongside to prevent corrosive reactions. Different varieties should be stacked separately to avoid mix-ups and contact corrosion. Larger steel components like sections, rails, and large-diameter pipes can be stored in open areas.
For smaller square pipes, thin steel plates, and high-value, corrosion-prone items like cold-rolled and galvanized pipes, a warehouse is ideal. Selection should be based on geographic conditions, with a preference for ordinary closed warehouses equipped with roofs, walls, secure doors and windows, and ventilation systems.
The Advantages of Galvanized Pipes:
1. Cost-Effective Processing: Hot-dip galvanization incurs lower costs compared to other rust-preventive coatings.
2. Longevity: Hot-dip galvanized steel pipes boast a gleaming surface, a uniform zinc layer with no gaps, no dripping, and excellent adhesion, offering formidable corrosion resistance. The anti-rust layer can last over 50 years without maintenance; in urban or marine environments, it remains effective for up to 20 years without repair.
3. Exceptional reliability: Revel in the outstanding reliability of our galvanized steel pipes, where the metallurgical fusion between the galvanized layer and the steel itself creates a harmonious blend. This seamless integration enhances the pipe's surface, making the durability of the coating exceptionally trustworthy and robust;
4. Superior toughness: Experience unmatched strength with our galvanized coating. The specialized metallurgical composition of the galvanized layer ensures it withstands mechanical stresses and impacts during both transport and application, preserving its integrity and resilience;
5. All-encompassing protection: Enjoy peace of mind with comprehensive coverage. Our galvanization process ensures that every section of the parts, including dips, acute angles, and concealed areas, is thoroughly protected. This full-scale safeguarding guarantees enduring performance and longevity;
6. Efficient and labor-saving: Our cutting-edge galvanizing process not only surpasses other coating methods in speed but also eliminates the need for post-installation painting. This streamlined approach saves valuable time and effort on-site, perfect for maximizing productivity and 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 expert packaging ensures that your goods are delivered safely and efficiently. We offer standard seaworthy packing that meets industry standards, or we can tailor packaging solutions to your specific requirements, ensuring the perfect fit for your logistical needs.
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.