Galvanized Steel Pipe 1 Inch to 8 Inch Hot Dipped GI Pipe Round Tubing ASTM A53 Sch40 6m
Product Spotlights
Hemaokang Steel (Shandong) Co., Ltd. is a reliable manufacturer and exporter of high-quality steel products, established in 2025 with an annual export value of US$50 Million – US$100 Million. Our Galvanized Steel Pipe 1 Inch to 8 Inch Hot Dipped GI Pipe Round Tubing ASTM A53 Sch40 6m is designed to meet the rigorous demands of industrial construction, water supply, and mechanical applications. With a strong commitment to quality and global standards, we deliver pipes that combine durability, corrosion resistance, and precision engineering, ensuring long service life and cost efficiency for your projects.
Our hot-dipped galvanized steel pipes are produced using premium raw materials and advanced manufacturing processes. The ASTM A53 standard guarantees consistent mechanical properties, while the Schedule 40 wall thickness provides excellent pressure-bearing capacity. Each pipe undergoes strict quality control, including hydrostatic testing and dimensional inspection, to ensure compliance with international specifications. Whether you need pipes for plumbing, structural framing, or gas transmission, our product offers a reliable solution.
Key Features and Technical Specifications
- Size Range: 1 inch to 8 inch nominal diameter, covering a wide variety of project requirements.
- Wall Thickness: Schedule 40 (Sch40) – optimal balance between strength and weight for medium-pressure applications.
- Standard Length: 6 meters (custom lengths available upon request).
- Surface Treatment: Hot-dipped galvanized (zinc coating) for superior corrosion resistance, extending service life in harsh environments.
- Material Grade: ASTM A53 Grade B (tensile strength ≥ 415 MPa, yield strength ≥ 240 MPa).
- End Finish: Plain end, beveled end, or threaded (optional).
- Testing: Hydrostatic test, bend test, flattening test, and dimensional inspection performed per ASTM A53 requirements.
- Certification: ISO 9001 quality management system ensures consistent production quality.
| Nominal Size (inch) | Outside Diameter (mm) | Wall Thickness (mm) | Weight per meter (kg) |
|---|---|---|---|
| 1 | 33.4 | 3.38 | 2.50 |
| 2 | 60.3 | 3.91 | 5.44 |
| 4 | 114.3 | 6.02 | 16.07 |
| 6 | 168.3 | 7.11 | 28.26 |
| 8 | 219.1 | 8.18 | 42.56 |
The hot-dipped galvanizing process provides a uniform zinc coating that adheres tightly to the steel surface, offering excellent protection against rust and corrosion. This makes our pipes ideal for outdoor applications, underground pipelines, and environments with high humidity or chemical exposure. The ASTM A53 Sch40 specification ensures compatibility with standard fittings, valves, and flanges, simplifying installation and reducing labor costs.
Advantages for Your Business
- Long Service Life: Zinc coating can last for decades under normal conditions, reducing maintenance and replacement costs.
- High Strength-to-Weight Ratio: Schedule 40 design provides adequate strength for most medium-pressure applications without excessive weight.
- Versatile Applications: Suitable for water supply, gas distribution, structural framing, scaffolding, fence posts, and more.
- Easy to Weld and Fabricate: Excellent weldability allows for custom configurations and on-site modifications.
- Global Compliance: Manufactured under ISO 9001 quality system, meeting ASTM A53, BS 1387, and other international standards (available upon request).
Our pipes are supplied in bundles with proper packaging for sea freight, including steel strapping, waterproof wrapping, and fumigation-free wooden pallets (if needed). We ship from Qingdao Port, ensuring efficient logistics to major markets worldwide. With a dedicated team of 51–100 employees and a proven track record of delivering to North America, South America, Europe, Asia, Africa, and Oceania, Hemaokang Steel can meet your bulk orders with consistent quality and competitive pricing.
Trust and Quality Assurance
As a company with US$50 Million – US$100 Million annual export value, we have built a strong reputation for reliability and customer satisfaction. Our ISO 9001 certification reflects our commitment to continuous improvement and quality control. Every batch of galvanized steel pipe is traceable and accompanied by mill test certificates upon request. We offer flexible payment terms, sample support, and technical consultation to help you select the right product for your project.
Contact us today for a quote or more information. Let Hemaokang Steel be your trusted partner for galvanized steel pipe solutions. We look forward to serving your needs with professionalism and integrity.
Frequently Asked Questions (FAQ)
-
Q: What is the difference between hot-dipped galvanized and pre-galvanized pipe?
A: Hot-dipped galvanized pipe is immersed in molten zinc after fabrication, providing a thicker, more durable coating. Pre-galvanized pipe is coated before forming, which may result in thinner coating and less protection at cut ends. Our product uses hot-dipped process for superior corrosion resistance. -
Q: Can I get custom lengths other than 6 meters?
A: Yes, we can supply custom lengths (e.g., 5.8m, 12m) based on your requirements. Please specify the length when placing an order. -
Q: Is the pipe suitable for high-pressure gas applications?
A: Schedule 40 is designed for medium-pressure applications. For high-pressure gas lines, we recommend consulting with a qualified engineer. Our pipes meet ASTM A53 requirements for standard gas and oil transmission. -
Q: What end finishes are available?
A: Standard ends are plain (square-cut). We can also provide beveled ends for welding, threaded ends for coupling, or grooved ends for mechanical fittings. Indicate your preference in the order. -
Q: Do you provide test certificates?
A: Yes, we provide mill test certificates (MTC) with each shipment, including chemical composition, mechanical properties, and hydrostatic test results. Additional third-party inspection is available upon request. -
Q: What is the minimum order quantity (MOQ)?
A: Typical MOQ is 5 tons per size, but we can accommodate smaller trial orders for new customers. Please contact our sales team for details. -
Q: How long does delivery take?
A: For standard sizes and quantities, production takes 15–20 days after receipt of deposit. Shipping time depends on the destination port. We work with reliable freight forwarders to ensure timely delivery. -
Q: Can I get a sample before placing a bulk order?
A: Yes, we offer free samples (excluding freight). You can request a 1-foot sample of any size to evaluate quality. Please contact us to arrange.
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