Products

ZHONGTIAN Hot Dip Galvanized Seamless Steel Pipe is a corrosion-resistant seamless pipe manufactured by applying a zinc coating to carbon steel or alloy seamless pipes through a high-temperature hot dip galvanizing process. With a seamless structure, strong pressure-bearing capacity, and long-lasting corrosion protection, it is widely used in outdoor pipelines, fire protection systems, water supply projects, and industrial engineering applications.

Black Seamless Steel Pipe is a general-purpose seamless carbon steel pipe supplied in its original black surface condition without galvanizing, painting, or other factory-applied coatings. It is manufactured from round steel billets through hot rolling or cold drawing technology, creating a continuous steel structure without welded joints.

Thin Wall Black Seamless Steel Pipe is a lightweight carbon steel pipe designed for low-pressure and precision piping applications. Produced through hot rolling or cold drawing processes, it features a seamless structure, smooth inner surface, accurate dimensions, and a natural black oxide scale finish without additional coating treatment. With excellent machinability and cost efficiency, it is widely used in instrument lines, equipment connections, mechanical parts, and indoor piping systems. ZHONGTIAN offers customized solutions with flexible material, size, and processing options.

Thick Wall Black Seamless Steel Pipe is designed for heavy-duty applications where high load capacity and pressure performance are required. Made from carbon or alloy steel, it offers a robust thick wall structure, reliable strength, and excellent durability while maintaining a natural black surface for flexible fabrication and further processing. It is widely applied in machinery, hydraulic equipment, energy, and structural engineering projects.

Hot Dip Galvanized Hot Rolled Seamless Steel Pipe is manufactured from hot rolled seamless steel pipe with a protective zinc coating for enhanced corrosion resistance and durability. Featuring high strength, excellent pressure performance, and long service life, it is widely used in fire protection systems, industrial pipelines, water supply, oil and gas transportation, and structural applications.

Hot Dip Galvanized Spiral Steel Pipe is a corrosion-resistant spiral welded steel pipe manufactured by applying a hot dip galvanized coating to SSAW steel pipe. The pipe is produced from Q235B, Q345B, or pipeline-grade steel through spiral forming and double-sided submerged arc welding, then immersed in molten zinc at approximately 440–460℃ to create a zinc-iron alloy layer and protective zinc coating. Compared with uncoated black spiral welded steel pipe, it provides better resistance to moisture, soil corrosion, and outdoor exposure, making it suitable for municipal water systems, agricultural irrigation, industrial pipelines, and outdoor engineering structures. ZHONGTIAN supplies customized galvanized spiral steel pipes with different diameters, wall thicknesses, materials, and coating requirements.