Factory Supplier Hot Dip Galvanized Round Steel Pipe For Construction
Hot dip galvanized steel pipe is produced through a process where molten zinc reacts with the steel surface to form a durable zinc-iron alloy coating. This metallurgical bond between the steel substrate and zinc coating provides excellent corrosion resistance, strong adhesion, and long service life.
During the galvanizing process, steel pipes are first treated with acid pickling to remove surface oxides and impurities. After cleaning in a zinc or ammonium chloride solution, the pipes are immersed in a molten zinc bath, where a series of physical and chemical reactions create a compact protective alloy layer.
The galvanized coating is firmly integrated with the steel pipe surface, forming multiple protective layers of zinc and zinc-iron alloy. This structure provides outstanding resistance against rust, moisture, and harsh environmental conditions.
Due to its uniform coating, high durability, excellent corrosion resistance, and low maintenance requirements, hot dip galvanized round steel pipes are widely used in construction, scaffolding, water supply systems, fire protection, greenhouse structures, fencing, and industrial applications.
Features
1. Excellent Corrosion Resistance
Hot dip galvanizing is an economical and effective method to prevent steel corrosion. The zinc coating forms a dense protective layer on the steel surface and provides cathodic protection. Even if the coating is slightly damaged, zinc can continue protecting the steel substrate from rust and corrosion.
2. Good Cold Bending and Welding Performance
Made from high-quality low carbon steel, galvanized steel pipes offer excellent cold bending and welding performance. They can be easily processed and fabricated to meet different construction and engineering requirements.
3. High Reflectivity
The zinc coating has strong light and heat reflectivity, helping reduce heat absorption and providing additional protection in outdoor applications.
4. Strong Coating Adhesion and Durability
The hot dip galvanized layer forms a special metallurgical bond with the steel surface, providing excellent coating toughness and resistance to mechanical damage during transportation, installation, and long-term use.
Application
Water Supply and Plumbing: Hot Dip Galvanized Steel Pipe are widely used for water supply and plumbing systems due to their resistance to corrosion and ability to withstand high-pressure water flow.
Construction and Infrastructure: These pipes are commonly used in construction projects for structural support, scaffolding, and the installation of handrails and guardrails. They are also used in infrastructure projects such as bridges, highways, and tunnels.
Agricultural and Irrigation: Hot dip galvanized steel pipes are used in agricultural applications for irrigation systems, water distribution, and the construction of greenhouses and farm structures.
Oil and Gas Industry: These pipes are utilized in the oil and gas industry for the transportation of oil, gas, and other fluids, as well as for the construction of drilling rigs and pipelines.
Fencing and Security: The durability and corrosion resistance of hot dip galvanized steel pipes make them suitable for fencing, security barriers, and perimeter enclosures in industrial, commercial, and residential settings.
Automotive and Transportation: They are used in the manufacturing of vehicle frames, exhaust systems, and other automotive components due to their strength and resistance to corrosion.
Mechanical and Structural Engineering: Hot dip galvanized steel pipes are employed in the fabrication of mechanical components, support structures, and various engineering applications due to their strength and reliability.
Parameters
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oduct Name
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Galvanized Steel Round Pipe(Hot Dipped or Pre Galvanized)
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Material
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Q195 Q235 Q345
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Wall Thickness
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1MM~12MM as the requirement
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Outer Diameter
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21.3MM~219.1MM
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Length
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5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques
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Zinc Coating
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30g-275g
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Technique
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ERW(GALVANIZED)
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Packing
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Bundle, or with all kinds of colors PVC or as your requirements
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Pipe Ends
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Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
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Surface Treatment |
1. Galvanized2. PVC,Black and color painting3. Transparent oil,anti-rust oil4. According to clients requirement
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Product Application
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1. Fence, greenhouse, door pipe,greenhouse2. Low pressure liquid, water, gas, oil, line pipe3. For both indoor and outdoor the building construction4. Widely used in scaffolding construction which is much cheaper and convenient
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Origin
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Tianjin China
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Details
1.Adjustable Zinc Coating Thickness
Our galvanized steel pipes are available with zinc coating thicknesses ranging from 30g/m² to 550g/m². We provide different surface treatment options, including hot dip galvanizing, electro galvanizing, and pre-galvanizing, according to customer requirements. Zinc coating inspection reports can be provided to ensure quality compliance.
2.Precise Thickness Control
The galvanized pipe thickness is manufactured according to contract specifications. Our production process ensures strict dimensional control, with thickness tolerance maintained within ±0.01mm for reliable performance and consistent quality.
3.Smooth Pipe Ends & High Precision Processing
Using advanced laser cutting technology, pipe ends are smooth, clean, and accurately processed, reducing the need for additional finishing and improving installation efficiency.
4.Flexible Length Customization
Our straight seam welded galvanized steel pipes are available in standard lengths of 6m and 12m. We can also supply 20ft and 40ft standard lengths for international shipping or customize special lengths according to project requirements, such as 13m or other specified dimensions.
5.Strong Production Capacity & Fast Delivery
With a 50,000㎡ warehouse and daily production capacity exceeding 5,000 tons, ROYAL GROUP ensures stable supply, fast delivery, and competitive pricing for large-volume orders worldwide.
Galvanized Pipe Packaging & Shipping
Galvanized pipe is widely used in construction and industrial applications. During long-distance transportation, improper packaging may cause problems such as rust, deformation, or surface damage. Therefore, proper packaging is essential to ensure product quality and safe delivery.
Packaging Requirements
1.Steel pipes must be clean and dry before packing, with no oil, dust, or other contaminants on the surface.
2.Pipes are protected with waterproof and moisture-resistant packaging materials to prevent corrosion during transportation.
3.Each bundle is labeled with product information, including specification, quantity, batch number, and production date.
4.Pipes are classified and packed according to size, length, and specifications for easier handling and storage.
Packaging Methods
1.Before packaging, galvanized pipes are inspected and cleaned to ensure surface quality.
2.Pipe ends are protected with suitable materials to prevent deformation and damage during loading and transportation.
3.Strong steel straps are used to secure pipe bundles, ensuring stability during shipping.
4.Waterproof wrapping and protective covers help prevent moisture, rust, and weather damage.
Shipping Precautions
1.Proper stacking methods are used to avoid excessive pressure or pipe deformation.
2.Packages are clearly marked for efficient warehouse management and delivery handling.
3.Customized packaging solutions are available according to transportation methods and destination requirements.
ROYAL GROUP follows strict export packaging standards to ensure galvanized steel pipes arrive safely and maintain excellent quality throughout international transportation.
Q1: Why choose Royal Group as a galvanized steel pipe supplier?
A: Royal Group has over 10 years of steel export experience, providing high-quality galvanized steel pipes with competitive prices, stable supply capacity, strict quality control, and professional global delivery services.
Q2: What types of galvanized steel pipes can you supply?
A: We supply various galvanized pipe products, including hot dip galvanized steel pipes, pre-galvanized pipes, electric galvanized pipes, round galvanized pipes, square galvanized tubes, and rectangular galvanized tubes for different applications.
Q3: What zinc coating thickness can you provide?
A: Our galvanized steel pipes can be supplied with zinc coating thicknesses according to customer requirements, commonly ranging from 30g/m² to 550g/m². Zinc coating inspection reports can also be provided.
Q4: Can you customize galvanized steel pipes?
A: Yes. We provide customized solutions including pipe diameter, wall thickness, length, zinc coating, surface treatment, packaging, and processing services according to project specifications.
Q5: What quality certificates and documents can you provide?
A: Royal Group provides complete export documents, including Mill Test Certificate (MTC), SGS inspection report (if required), Certificate of Origin, Packing List, and Commercial Invoice to ensure reliable quality and smooth customs clearance.
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