High Quality Carbon Seamless Steel Pipe

Hot-Dip Galvanized Steel Tubes for Structural and Industrial Applications

Explore premium-quality hot-dip galvanized steel tubes engineered for durability, corrosion resistance, and versatility across global construction and infrastructure projects. These seamless or welded carbon steel tubes are manufactured using advanced electro-resistance welding (ERW), electronic fusion welding (EFW), and double submerged arc welding (DSAW) techniques to meet international standards such as ASTM A53 GrB, BS EN10296, and GB/T3091-1993. With zinc coating weights ranging from 260–300 g/m² up to over 500 g/m², these tubes offer superior protection against rust and environmental wear—ideal for both indoor and outdoor environments.

Available in a wide range of outer diameters from 1/4 inch (15 mm) to 24 inches (610 mm), and wall thicknesses between 1.2 mm and 12 mm—including SCH30, SCH40, STD, XS, SCH80, SCH160, and XXS schedules—these tubes provide flexibility for diverse load-bearing and piping needs. Standard lengths include 5.8 m, 6 m, 11.8 m, and 12 m, with custom cutting options available to ±0.4 mm tolerance for precise fitment in complex installations. Ends can be plain, beveled, or threaded with coupling caps, offering adaptability for connections without compromising structural integrity.

Material options span multiple grades including Q195, Q215, Q235, and Q345, aligning with European equivalents like S235JR, SS400, and ST52, ensuring compatibility with global engineering specifications. Surface treatments vary from bare and black painted finishes to full galvanization, oil-coated protection, and advanced anti-corrosion systems like 3PE or FBE coatings—each tailored to specific climatic conditions and application demands. Each tube undergoes rigorous quality assurance: hydraulic testing, eddy current inspection, and infrared scanning ensure consistency and safety in high-stress applications.

These tubes are widely used in structural frameworks, scaffolding, fencing, agricultural equipment, and mechanical supports where strength, longevity, and cost-effectiveness are critical. Whether supporting industrial machinery, forming building components, or serving as conduit for utilities, their robust design and standardized compliance make them a trusted choice for engineers, contractors, and procurement specialists worldwide.

Customers consistently praise the uniformity of finish, reliable performance under pressure, and ease of installation—especially when paired with supplied plastic caps or iron end protectors that prevent damage during transport and storage. Many report reduced maintenance costs due to extended service life compared to untreated alternatives, particularly in humid or coastal regions.

Frequently asked questions often center around customization options—such as non-standard dimensions, special surface finishes, or packaging preferences—and the answer remains clear: yes, bespoke solutions are supported based on order volume and technical feasibility. Another common inquiry involves delivery timelines; turnaround depends on the quantity and complexity of each specification but typically ranges from 2 to 6 weeks post-order confirmation, depending on production capacity and shipping logistics.

For professionals seeking durable, compliant, and adaptable steel tubing for global markets, these hot-dip galvanized steel tubes represent an optimal balance of performance, value, and reliability—backed by comprehensive documentation and consistent quality control processes.

Product Categories : Steel Pipe > Seamless Steel Pipe