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Help CenterHot Dipped Galvanized Steel Round Pipe Gi Pipe for Construction
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As a leading manufacturer based in Wuxi, Jiangsu, China, Wuxi Yansheng Technology Co., Ltd. has been dedicated to producing high-quality steel products since 2017. With a factory spanning 1,000–3,000 square meters and a dedicated team of 101–200 employees, we specialize in hot dipped galvanized steel round pipes (GI pipes) that are widely used in construction projects worldwide. Our annual export value reaches US$50–100 million, serving markets across North America, South America, Europe, Southeast Asia, Africa, and Oceania. This product is engineered to provide exceptional corrosion resistance, structural integrity, and long service life, making it the preferred choice for builders, contractors, and infrastructure developers.
Our hot dipped galvanized steel round pipe undergoes a rigorous manufacturing process that ensures a uniform zinc coating, excellent adhesion, and superior protection against rust and environmental elements. Each pipe is produced in strict compliance with international standards such as ASTM A53, BS 1387, and EN 10255, guaranteeing consistent quality and dimensional accuracy. Whether you need pipes for scaffolding, handrails, greenhouse frames, water pipelines, or structural supports, our GI pipes deliver reliable performance under demanding conditions.
Key Features & Technical Specifications
- Superior Corrosion Resistance: The hot-dipped galvanized coating (zinc layer) provides excellent protection against moisture, chemicals, and atmospheric corrosion, extending the pipe's lifespan significantly compared to black steel pipes.
- High Strength & Durability: Made from high-quality steel with precise control of chemical composition, our pipes offer high tensile strength and impact resistance, suitable for heavy-load construction applications.
- Smooth Surface Finish: The galvanized surface is smooth and free from burrs, ensuring easy handling, welding, and painting if required.
- Customizable Dimensions: Available in a wide range of outer diameters (1/2" to 12"), wall thicknesses (1.0mm to 12.0mm), and lengths (1m to 12m), with options for threading, grooving, or beveled ends.
- Easy Installation: Lightweight yet sturdy, these pipes can be cut, welded, threaded, and connected using standard fittings, reducing labor time and costs.
- Eco-Friendly Process: Our hot-dip galvanizing process is environmentally controlled, with waste treatment systems that meet international environmental standards.
| Parameter | Available Range | Remarks |
|---|---|---|
| Outer Diameter | 21.3mm – 323.9mm (1/2" – 12") | Custom sizes available on request |
| Wall Thickness | 1.0mm – 12.0mm (SCH 10 to SCH 40) | Schedule 80 available upon request |
| Length | 1m – 12m (random or fixed) | Custom lengths can be cut |
| Zinc Coating Weight | 200 – 600 g/m² (both sides) | Higher coating available for extreme environments |
| Standard Compliance | ASTM A53, BS 1387, EN 10255, ISO 1461 | Other standards can be met |
| End Finish | Plain, beveled, threaded, or grooved | Plastic caps for protection |
Benefits for Your Projects
- Cost-Effective: Long service life reduces replacement and maintenance costs, providing excellent return on investment.
- Versatile Applications: Suitable for construction scaffolding, fencing, handrails, water supply lines, structural supports, and agricultural greenhouses.
- Global Compatibility: Our pipes are dimensionally compatible with standard fittings and couplings used in international markets, simplifying procurement.
- Reliable Quality Assurance: Every batch undergoes rigorous testing including tensile strength, bend test, coating thickness, and uniformity inspection.
At Wuxi Yansheng Technology, we pride ourselves on our ISO 9001-certified quality management system, which ensures consistent production excellence. Our experienced team of 101–200 professionals oversees every step from raw material selection to final packaging, delivering products that meet the highest standards. With convenient access to major ports like Tianjin, Shanghai, Qingdao, and Ningbo, we ensure timely delivery to global customers. Our strong export performance (US$50–100 million annually) and wide market coverage across 15+ regions testify to our reliability and customer satisfaction.
We invite you to experience the quality and durability of our hot dipped galvanized steel round pipes. Whether you require a standard specification or a customized solution, our team is ready to assist with technical support and competitive pricing. Contact us today to discuss your project needs and discover why hundreds of construction companies trust Wuxi Yansheng Technology as their preferred pipe supplier.
Frequently Asked Questions (FAQ)
Q1: What is the difference between hot dipped galvanized and pre-galvanized pipes?
A1: Hot dipped galvanized pipes are immersed in molten zinc, creating a thicker, more durable coating that offers superior corrosion resistance, ideal for outdoor and construction use. Pre-galvanized pipes have a thinner coating applied before forming, which may be less protective.
Q2: Can these pipes be used for drinking water supply?
A2: Yes, our hot dipped galvanized pipes are manufactured with high-quality zinc that meets safety standards for potable water. However, we recommend checking local regulations as some regions have specific requirements for water pipes.
Q3: What is the typical lead time for an order?
A3: For standard sizes, lead time is usually 15–25 days after confirmation of order and payment. Custom sizes may require 20–30 days. We work to expedite urgent orders whenever possible.
Q4: Do you provide samples for quality testing?
A4: Yes, we offer free samples for existing stock sizes. The customer is responsible for shipping costs. Contact our sales team to arrange sample delivery.
Q5: What certifications do your pipes have?
A5: Our factory is ISO 9001 certified, and our products comply with international standards such as ASTM A53, BS 1387, and EN 10255. Additional certifications can be provided upon request depending on the target market.
Q6: Can you supply pipes with threaded ends or couplings?
A6: Absolutely. We offer plain ends, beveled ends, threaded ends, and grooved ends. Threaded pipes can be supplied with couplings (sockets) as per your requirements.
Q7: How do you ensure the pipes are rust-free during transportation?
A7: We apply protective measures such as plastic caps, rust-proof oil coating (if required), and proper bundling with waterproof wrapping for sea freight. Our packaging is designed to withstand long-distance shipping.
Q8: What is the minimum order quantity (MOQ)?
A8: For standard sizes, the MOQ is typically 5 tons. For non-standard sizes, the MOQ may be higher. We are flexible and can discuss smaller quantities for trial orders.
* All specifications are subject to change based on customer requirements. Please consult with our sales team for the most accurate information.
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