Carbon Seamless Steel Pipe, 2.5-75/3-20mm

Hot Dipped Galvanized Steel Tube – Durable, Corrosion-Resistant Solutions for Industrial and Construction Applications

Engineered for strength and longevity, our hot dipped galvanized steel tube offers superior protection against environmental degradation while maintaining structural integrity across a wide range of industrial and infrastructure projects. Whether you're sourcing materials for scaffolding, pipeline systems, or architectural frameworks, this premium-grade tubing combines advanced manufacturing techniques with rigorous quality assurance to deliver consistent performance in demanding conditions.

Manufactured from high-quality carbon steel such as Q195, Q215, Q235, and Q345, each tube undergoes precise hot dip galvanization—ensuring a zinc coating thickness between 260–300 g/m², with options exceeding 500 g/m² for enhanced durability. The process not only prevents rust but also extends service life significantly, making it ideal for outdoor installations exposed to moisture, humidity, or chemical exposure. Available in diameters ranging from 1/2" (21.3 mm) to 8" (219.1 mm), with wall thicknesses from 1.2 mm up to 12 mm, these tubes meet international standards including ASTM A53 GrB, BS EN10296, GB/T3091, and more—ensuring compatibility with global engineering specifications.

Key features include customizable end finishes—plain, beveled, or threaded with coupling caps—and multiple surface treatments such as black varnish, oil coating, or 3PE/FBE anti-corrosion layers for specialized environments. The tubes are produced using Electronic Resistance Welded (ERW), Electric Fusion Welded (EFW), or Double Submerged Arc Welded (DSAW) methods, ensuring uniform weld quality and mechanical reliability. Every batch is tested via hydraulic pressure, eddy current, and infrared inspection protocols to guarantee safety and compliance with industry benchmarks.

Designed for versatility, these galvanized steel pipes support applications across construction, energy transmission, agricultural infrastructure, and mechanical fabrication. Their standardized lengths—5.8 m, 6 m, 11.8 m, or 12 m—with tolerance control within ±0.4 mm allow seamless integration into modular designs. Custom cutting services are available upon request, enabling tailored solutions for unique project requirements. Additionally, optional fittings like flanges, screws, and connectors can be supplied to streamline assembly processes and reduce on-site labor costs.

Global customers have praised the product’s robustness under extreme weather conditions, noting minimal maintenance needs over extended periods. Many users highlight the ease of installation, particularly when paired with pre-threaded ends and protective plastic caps that prevent damage during transport and storage. For professionals seeking cost-effective yet long-lasting alternatives to stainless steel or aluminum, this galvanized tubing represents an optimal balance of performance, affordability, and sustainability.

Common inquiries often revolve around corrosion resistance in marine environments, which the thick zinc layer effectively addresses. Another frequent question concerns customization—yes, we accommodate non-standard dimensions, special coatings, and packaging preferences based on client needs. While some buyers initially worry about welding compatibility, our ERW and DSAW variants ensure excellent fusion properties without compromising tensile strength. Overall, this solution stands out as a trusted choice for engineers, contractors, and procurement managers worldwide who prioritize resilience, consistency, and value.

Product Categories : Steel Pipe > Seamless Steel Pipe