Products

ZHONGTIAN Small Diameter Cold Rolled Seamless Steel Pipe is a precision steel tube manufactured through multi-pass cold rolling, precision sizing, and heat treatment processes using high-quality carbon steel, alloy steel, and special steel materials such as 10#, 20#, 45#, Q345B, and 40Cr. With a seamless structure, tight dimensional tolerance, smooth surface finish, excellent roundness, and reliable mechanical performance, it is widely used in hydraulic systems, precision instruments, automation equipment, pneumatic systems, and mechanical components requiring high accuracy and machinability.

ZHONGTIAN Hot Dip Galvanized Cold Rolled Seamless Steel Pipe is a precision seamless pipe manufactured through cold rolling or cold drawing processes followed by hot dip galvanizing treatment. It features high dimensional accuracy, smooth surface finish, uniform wall thickness, and excellent corrosion resistance. With a seamless structure and reliable mechanical performance, it is widely used in hydraulic systems, automation equipment, instrument pipelines, and precision engineering applications requiring both accuracy and long-term protection.

ZHONGTIAN Large Diameter Hot Rolled Seamless Steel Pipe is a high-strength seamless pipe manufactured from carbon steel and low alloy steel billets such as 20#, Q235B, Q345B, and 16Mn through high-temperature piercing and continuous hot rolling processes. Unlike welded steel pipes, it is formed as an integrated structure without longitudinal or spiral weld seams, providing uniform mechanical properties, reliable pressure resistance, and excellent structural stability.

ZHONGTIAN Hot Rolled Seamless Steel Pipe is a high-strength seamless pipe manufactured from round steel billets through high-temperature heating, piercing, rolling, sizing, and straightening processes. It features a uniform steel structure, excellent pressure resistance, reliable mechanical performance, and flexible specifications with larger diameters and thicker walls.

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.