The hot dipped GI steel pipe and pre-galvanized round tube manufactured with ASTM A53 grade steel is designed for greenhouse construction, structural support framing, agricultural facilities, and general building applications. Produced through advanced welding and galvanizing processes, the pipe offers strong corrosion resistance, excellent strength, and consistent dimensional accuracy.

Using a high-quality carbon steel substrate, each pipe undergoes hot dip galvanizing or pre-galvanizing to create a uniform and protective zinc coating layer ranging from 40–275 g/m². This zinc layer effectively prevents oxidation and rust, making the pipe suitable for humid, outdoor, and agricultural environments such as greenhouse tunnels, irrigation systems, and plant support structures.

The GI pipe is available in round shapes with diameters from 20mm to 219mm and wall thicknesses from 0.6mm to 6.0mm to meet different structural load requirements. Its smooth surface, accurate weld seam, and high-impact resistance allow reliable performance during bending, cutting, welding, and installation. It also complies with ASTM, EN, BS, and JIS standards for safety and durability.

In greenhouse applications, the pipe provides excellent stability, strong compression resistance, and long-term durability under changing temperature and humidity conditions. It is widely used in greenhouse arches, support frames, shading systems, crop tunnels, poultry sheds, and agricultural structures. In construction projects, the pipe serves as a dependable material for scaffolding, fences, fencing posts, handrails, and lightweight building frameworks.

Factory-direct production ensures consistent quality, competitive pricing, large inventory, and fast delivery. OEM and customization services are available for thickness, length, zinc coating levels, packaging, marking, and specific project requirements.

This hot dipped and pre-galvanized GI steel pipe is a reliable and cost-effective solution for greenhouse building and structural applications requiring strength, durability, and corrosion resistance.