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Help Center4 Inch 6 Inch 8 Inch Large Diameter Galvanized Steel Pipe S275 JR Hot Dip Galvanized Round Tube 5.5m Length
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your trusted partner in premium steel solutions. Our 4 Inch, 6 Inch, and 8 Inch Large Diameter Galvanized Steel Pipe in S275 JR grade, hot-dip galvanized, with a standard length of 5.5 meters, is engineered to deliver exceptional durability and corrosion resistance for demanding applications. As a company with an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals, we are committed to providing high-quality products that meet global standards. This pipe is ideal for structural frameworks, water transmission, and outdoor installations where long-term performance is non-negotiable.
Our galvanized round tubes undergo a rigorous hot-dip galvanizing process, ensuring a uniform zinc coating that protects against rust and environmental stressors. The S275 JR carbon steel base offers excellent strength and weldability, making these pipes suitable for a wide range of industrial and construction projects. Each pipe is manufactured in compliance with international norms, and we offer customization options for wall thickness and length to fit your specific requirements.
Key Features & Technical Specifications
- Superior Corrosion Protection: Hot-dip galvanized coating provides a robust barrier against moisture, chemicals, and UV exposure, extending service life by decades.
- High Strength-to-Weight Ratio: S275 JR steel ensures reliable load-bearing capacity without excessive weight, reducing transportation and installation costs.
- Versatile Diameter Sizes: Available in 4 inches (101.6 mm), 6 inches (152.4 mm), and 8 inches (203.2 mm) nominal diameters to accommodate diverse piping and structural needs.
- Consistent 5.5m Length: Standardized length simplifies logistics and minimizes cutting waste on job sites.
- Customizable Wall Thickness: We offer schedules from SCH 10 to SCH 80 (or non-standard thicknesses) upon request, ensuring compatibility with your pressure or load requirements.
- Excellent Weldability & Formability: S275 JR material allows easy welding, bending, and threading, facilitating quick integration into existing systems.
| Parameter | Specification |
|---|---|
| Material Grade | S275 JR (EN 10025) |
| Nominal Diameter | 4" (101.6 mm), 6" (152.4 mm), 8" (203.2 mm) |
| Length | 5.5 meters (standard, other lengths available) |
| Coating Process | Hot Dip Galvanizing (HDG) |
| Zinc Coating Weight | ≥ 200 g/m² (customizable) |
| Wall Thickness Range | 2.0 mm – 12.0 mm (customizable) |
| Applicable Standards | EN 10219, ASTM A53, BS 1387 (optional) |
| End Finish | Plain ends, beveled ends, or threaded with coupling |
Advantages for Your Business
- Enhanced Lifespan: The hot-dip galvanized finish resists corrosion far longer than painted or electroplated coatings, reducing maintenance and replacement cycles.
- Cost-Efficient: S275 JR steel offers a balanced combination of strength and affordability, making it a budget-friendly choice for large-scale projects.
- Easy Installation: Lightweight relative to other materials (e.g., concrete or cast iron) and compatible with standard fittings, saving labor time and equipment costs.
- Global Compliance: Our pipes meet or exceed requirements of major international standards, ensuring acceptance in markets across North America, South America, Europe, Asia, Africa, and Oceania.
- Consistent Quality: Every batch is tested for dimensional accuracy, zinc coating uniformity, and mechanical properties, backed by our ISO9001-certified quality management system.
At Hemaokang Steel, we understand that your projects demand reliability. That is why we have built a robust supply chain capable of handling orders from small quantities to large container loads. Our team of 51–100 experienced employees ensures timely production and rigorous quality control at every stage. With an annual export value of US$50 million to US$100 million, we have earned the trust of clients in over 30 countries, including major markets in North America, Southeast Asia, and Europe.
Your satisfaction is our priority. We provide comprehensive technical support, from material selection advice to logistics coordination. Whether you need standard 5.5-meter pipes or custom lengths, our flexible manufacturing capabilities can accommodate your requirements. Contact us today to discuss your needs and request a competitive quotation. Experience the reliability of Hemaokang Steel – where quality meets value.
Frequently Asked Questions
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Q: What is the difference between hot-dip galvanized and pre-galvanized pipes?
A: Hot-dip galvanizing (HDG) involves immersing the pipe in molten zinc, creating a thicker, more durable coating that is ideal for outdoor and harsh environments. Pre-galvanized pipes have a thinner coating applied before forming, making them suitable for interior or mild conditions. Our pipes are HDG for maximum protection. -
Q: Can you provide pipes with lengths other than 5.5 meters?
A: Yes, we can customize lengths from 1 meter to 12 meters upon request. Please specify your requirements when placing an order so we can adjust production accordingly. -
Q: What certifications do your pipes have?
A: Our pipes are manufactured under an ISO9001-certified quality management system. We can also provide mill test certificates (MTC) and third-party inspection reports (e.g., SGS, BV) as required. -
Q: Are these pipes suitable for underground water transmission?
A: Yes, the hot-dip galvanized coating provides excellent corrosion resistance against soil chemicals and moisture. For potable water applications, we recommend pipes with a zinc coating that complies with relevant health standards (e.g., NSF/ANSI 61). Please consult our technical team for specific requirements. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes and lengths, our MOQ is typically 10 tons. For custom sizes or small-diameter pipes, we can discuss lower quantities based on availability. Feel free to contact us for flexible options. -
Q: How do you ensure the pipes are free from defects?
A: Every pipe undergoes visual inspection, dimensional checks, and hydrostatic testing (if required). We also perform random sampling for zinc coating thickness and mechanical properties. Our quality control team follows strict ISO9001 procedures. -
Q: What is the typical lead time for an order?
A: For standard specifications, lead time is approximately 15–25 days after order confirmation. Custom orders may take 20–30 days. We will provide a detailed schedule upon receiving your inquiry. -
Q: Do you offer samples for testing?
A: Yes, we can provide small sample pieces (e.g., 30 cm length) for quality evaluation. The sample cost is usually covered by the customer, but we may waive it for serious inquiries. Shipping costs are borne by the buyer.
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