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Help CenterGalvanized Steel Pipe Q235B Hot Dip Galvanized 3 Inch 88.9mm OD Sch40 6m Length
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Hemaokang Steel (Shandong) Co., Ltd. is a leading supplier of high-quality steel products, established in 2025 with an annual export value between US$50 Million - US$100 Million. Our Galvanized Steel Pipe Q235B Hot Dip Galvanized 3 Inch 88.9mm OD Sch40 6m Length is manufactured to meet the rigorous demands of global infrastructure, construction, and industrial projects. With ISO9001 certification and a dedicated team of 51-100 professionals, we ensure every pipe delivers superior corrosion resistance, dimensional accuracy, and long-term durability. This product is ideal for water supply, gas transmission, oil pipelines, and structural applications, offering excellent value for your procurement needs.
Product Features & Technical Specifications
- Material: Q235B carbon steel, providing excellent weldability and formability.
- Galvanizing Process: Hot-dip galvanized (HDG) with a minimum zinc coating of 200g/m² per ASTM A123, ensuring exceptional corrosion resistance.
- Dimensions: 3-inch nominal diameter (88.9mm OD) with Sch40 wall thickness (5.49mm), and a standard length of 6 meters (6000mm).
- End Finish: Available plain end, beveled end, or threaded with coupling as per your requirement.
- Standards: Complies with ASTM A53, ASTM A106, BS1387, and EN10255 standards.
- Surface: Smooth, uniform galvanized coating with no spangles, ready for painting or direct use.
| Specification | Value |
|---|---|
| Outer Diameter (OD) | 88.9 mm (3.5 inches) |
| Wall Thickness (Sch40) | 5.49 mm (0.216 inch) |
| Length | 6,000 mm (6 meters) ± 10 mm |
| Weight per Meter | Approx. 11.29 kg/m |
| Zinc Coating | ≥ 200 g/m² (average) |
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 240 MPa |
Key Advantages: Our hot-dip galvanizing process provides a thick, metallurgically bonded zinc layer that protects the steel even in harsh environments. The Q235B grade ensures good bending and welding performance, making it suitable for structural, plumbing, and mechanical applications. The 6-meter length reduces the number of joints needed, saving installation time and cost. All pipes undergo hydrostatic testing, flattening, and bending tests to guarantee quality and reliability.
Trusted by Global Markets
Hemaokang Steel has established a strong presence in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and other regions. With ISO9001 quality management system certification, we ensure consistent product quality from raw material sourcing to final delivery. Our annual export capability of US$50-100 million reflects our capacity to handle large-scale orders with timely delivery. We offer flexible packaging options (bundled, in wooden crates, or as per customer request) and provide certifications such as mill test certificates.
Why choose Hemaokang Steel?
- Competitive factory pricing with direct supply from Liaocheng, Shandong – a major steel production hub.
- Professional quality control team inspecting every batch before shipment.
- Customizable end finishes, lengths (within 12m), and threading options upon request.
- After-sales support and technical consultation available.
We invite you to experience the reliability and performance of our galvanized steel pipes. For bulk orders or custom specifications, please contact our sales team for a quote and lead time. Hemaokang Steel – your trusted partner for quality steel solutions.
Frequently Asked Questions
Q1: What is the difference between hot-dip galvanized and pre-galvanized pipe?
A: Hot-dip galvanized pipe is submerged in molten zinc, creating a thicker coating (≥200 g/m²) that offers superior corrosion resistance, ideal for outdoor or underground use. Pre-galvanized pipe has a thinner coating applied to steel sheets before forming, suitable for less demanding environments.
Q2: Can this pipe be used for natural gas transportation?
A: Yes, our Q235B galvanized pipe meets ASTM A53 requirements for gas and oil transmission, but we recommend verifying local regulations and using appropriate fittings. For high-pressure gas applications, please consult our technical team for specific grade recommendations.
Q3: Is the pipe threaded on both ends?
A: By default, the pipe is supplied with plain ends. Threaded ends with couplings are available as an option. Please specify your requirement when placing an order.
Q4: What is the minimum order quantity (MOQ)?
A: Our MOQ for standard sizes is 5 tons (approx. 74 pieces of 6m Sch40 pipe). For custom sizes, MOQ may be negotiable. We welcome small trial orders for first-time customers.
Q5: Do you provide mill test certificates?
A: Yes, we provide a Mill Test Certificate (MTC) for each shipment, including chemical composition and mechanical properties of the steel. Third-party inspection is also available upon request.
Q6: How long does delivery take?
A: Typical delivery time is 15-25 days after receipt of payment, depending on order quantity and destination. We have efficient logistics partners to ensure timely shipping.
Q7: Can the pipe be cut to custom lengths?
A: Yes, we can cut the pipe to any length between 1m and 12m. Please note that cut pieces may have slight dimensional variations (±5mm).
Q8: What are the payment terms?
A: We accept T/T (30% deposit, 70% before shipment) and L/C at sight. Other terms may be negotiable for long-term partners.
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