Products

Precision Steel Right-Angle Tube is a high-accuracy 90° square-corner hollow steel section designed for projects where clean joints, consistent dimensions, and controlled geometry matter. Manufactured from Q235B or Q355B carbon steel through progressive cold forming and high-frequency welding, it offers a sharper corner profile than conventional rounded-corner hollow sections. Sizes, wall thicknesses, fixed lengths, cutting, chamfering, and other machining options can be customized for structural frames, equipment fabrication, interior steelwork, racks, and architectural applications.

Seamless Boiler Tube is designed for boilers, thermal power equipment, heat-exchange systems and other high-temperature or pressure-bearing applications. It is manufactured from boiler-grade steel and formed by hot rolling or cold drawing without a longitudinal weld seam. Compared with structural seamless pipe or general fluid-service pipe, boiler tube is produced and inspected for specific boiler service conditions.

We supply hot rolled and cold drawn seamless carbon steel pipes for structural, mechanical and fluid service applications. Available materials include 20#, 45#, Q355B, 27SiMn and 40Cr, with standard and customized sizes for engineering projects, machinery manufacturing and industrial piping.

Seamless Carbon Steel Structural Tube is manufactured for structural, mechanical and general engineering applications. We supply hot rolled and cold drawn seamless tubes in common carbon and alloy structural grades, with standard sizes, customized lengths and further processing such as cutting, beveling, galvanizing and corrosion protection.

Rongheng supplies High-Temperature Seamless Carbon Steel Pipe for boilers, thermal power systems, steam transmission, heat recovery units and high-temperature process pipelines. Manufactured from quality carbon steel, the pipe is designed for continuous service at 425°C, with short-term service up to 450°C and a rated pressure of 10 MPa at 425°C. Available to GB/T 9948 and ASTM A106 Gr.B requirements, it can be supplied in fixed lengths and with chamfering or internal polishing for project installation.

Carbon Steel Seamless Pipe for Pipeline Systems is used for the transportation of water, oil, gas, steam and other industrial media where the pipeline requires a continuous, non-welded pipe body. Available in 20#, Q235B, Q345B, A106 Gr.B and A53 Gr.B, with outside diameters from 21–630 mm and wall thicknesses from 1–50 mm. Standard 6 m and 12 m lengths are available, with custom sizes, pressure classes and surface treatments for project applications.