Import 25*50 Pre Galvanized Hollow Section — Buy in wholesale FOB from Supplier in China

This 25x50mm pre-galvanized rectangular hollow section is a structural steel tube with a 25mm by 50mm outer cross-section, manufactured by Tianjin Xinyue Steel Pipe Group in China. The pre-galvanized finish carries a zinc coating of 60-120 g/m², providing corrosion protection without requiring post-fabrication treatment. The product is produced to API and BS EN 10219 standards, which govern the dimensional tolerances, mechanical properties, and weld quality of cold-formed structural hollow sections. Wall thickness and exact dimensional tolerances should be confirmed with the supplier, as these determine the section's load-bearing capacity and compatibility with connection details.

The base material is structural carbon steel, with the zinc coating applied through a hot-dip galvanizing process prior to forming or on the finished tube, depending on the mill's production route. Typical grades for this application include S235JR or S355JR under EN 10219, or equivalent Chinese grades such as Q235 or Q345. The pre-galvanized surface offers sacrificial corrosion protection; the zinc layer corrodes preferentially to protect the underlying steel. Standard industry practice for this product category includes coating weights measurements in g/m² per side, with 60-120 g/m² representing a common commercial range for internal and moderate external exposure conditions. Mills may offer Z275 or heavier coatings for more aggressive environments, though this would typically be specified as post-galvanized rather than pre-galvanized.

Buyers typically use this section for structural frameworks, racking systems, agricultural equipment, fencing, and general fabrication where weight efficiency and corrosion resistance are needed. The rectangular profile provides good bending resistance about the major axis, making it suitable for beams and columns in light structures. Contractors and steel distributors are the primary purchasers, often cutting to length and drilling on-site. Trade terms and minimum order quantities should be confirmed directly with Tianjin Xinyue Steel Pipe Group, as the listing does not specify volumes, pricing, or standard stock lengths.

Tianjin Xinyue Steel Pipe Group is based in Daqiuzhuang Industrial Area, Jinghai County, Tianjin, China, a region with concentrated steel pipe manufacturing capacity. The supplier holds a harbor trust tier on the platform, with a response rate of 0.00% and zero recorded average response hours at the time of listing review. These engagement metrics indicate the profile may be underutilised or that the supplier primarily conducts business through channels outside the platform messaging system. Buyers should consider direct outreach via the supplier's established sales channels to assess responsiveness and account support.

The listing positions the company as a manufacturer of structural hollow sections to API and BS EN 10219 standards, with emphasis on pre-galvanized products for export markets. No verified production capacity, number of production lines, annual turnover, employee count, or specific client references are provided in the source material. Certification claims such as ISO and CE are mentioned in the source description but should be verified directly with the supplier, including the scope of certification and issuing body. The company does not state its history, ownership structure, or export experience in the available data.