ERW Electric Resistance Welded Round Steel Pipes

This series of profiles is specially designed for modern agricultural greenhouse construction, including hot-dip galvanized cold-rolled square section iron profiles and ERW electric resistance welded round steel pipes. Manufactured from high-quality Q195 and Q235 low-carbon steel, the products comply with Chinese national standards, ASTM, BS and other international standards. Adopting precision cold rolling, high-frequency ERW welding and overall hot-dip galvanizing processes, they feature stable structure, superior corrosion resistance and wide adaptability, serving as the core structural materials for intelligent greenhouses, multi-span greenhouses, solar greenhouses and agricultural breeding sheds.

1. Precision ERW Welding Technology: Adopts high-frequency electric resistance welding with uniform, dense and defect-free welds. The welding strength is consistent with the base metal, effectively avoiding cracking and deformation under long-term stress. With strict dimensional tolerances, the pipes are perfectly suitable for standardized greenhouse installation.

2. Overall Hot-dip Galvanization: A dual protective layer composed of pure zinc and zinc-iron alloy is formed on the steel surface through high-temperature molten zinc dipping. The adhesive and full coating completely isolates air, moisture and agricultural acid-base vapor. Featuring sacrificial anode protection, it provides continuous anti-rust performance even with minor scratches, solving the corrosion and aging problems of steel pipes in high-humidity greenhouse environments.

3. Cold Rolling Forming Process: Square section profiles are precisely cold-rolled with flat and uniform pipe walls and regular sections. They offer balanced stress bearing and excellent machinability for bending, cutting and welding, supporting customized construction of special-shaped greenhouse structures.

✅ Excellent Corrosion Resistance & Ultra-long Service Life: Adaptable to long-term high-temperature, high-humidity and acid-base environments in greenhouses. The outdoor service life reaches 20-50 years, far longer than ordinary painted and pre-galvanized pipes, greatly reducing greenhouse maintenance and renovation costs.

✅ High Strength & Strong Wind/Snow Resistance: With tough base material and stable structure, it can resist strong wind and snow loads, and support the installation of irrigation, sunshade and ventilation systems in large-scale multi-span intelligent greenhouses.

✅ Easy Installation & Wide Compatibility: Smooth burr-free surface and standardized complete specifications enable fast assembly. It is applicable to single-span greenhouses, multi-span greenhouses, seedling greenhouses, agricultural breeding greenhouses and other agricultural facilities.

✅ Cost-effective & Eco-friendly: Compared with seamless steel pipes, ERW welded pipes have lower cost and higher forming efficiency. The recyclable materials meet the green construction standards of modern agriculture, ideal for large-scale greenhouse engineering projects.

Widely used in the construction of main frames, columns, arch rods, cross beams and supporting structures for intelligent multi-span greenhouses, vegetable and flower planting greenhouses, solar greenhouses, seedling greenhouses, agricultural breeding greenhouses and sightseeing agricultural greenhouses, which are the preferred structural steel pipes for modern agricultural facility construction.

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