This is a practical and important question in the fields of construction and industry. Although they may appear similar externally, ERW Square and Rectangular Tube and seamless square/rectangular tubes have distinct differences in performance, cost, and application due to their fundamental differences in manufacturing processes. In short, the co...

Process classification Square and rectangular tubes are classified by production process into: hot rolled seamless rectangular tube, cold drawn seamless square tube, extruded seamless square tube, and welded square tube. Welded square tube is further divided into: (a) By process: arc welded square tube, resistance welded square tube (high freque...

In the construction and manufacturing industries, rectangular steel pipes are popular for their structural stability and load-bearing capacity. However, wet weather poses a challenge for the storage of rectangular tubes, as the humidity can lead to metal rust and corrosion. In order to ensure the long-term performance and service life of rectang...

Beginning January 1, 2026, China has officially implemented a steel export licensing system, exerting multifaceted influences on the steel export sector. The system mandates that export enterprises obtain licenses by submitting their export contracts along with quality inspection certificates from manufacturers. Covering the entire industrial ch...

The rise of prefabricated steel structure housing represents a paradigm shift in construction, prioritizing speed, durability, and cost-efficiency. At the core of this innovative building method lies a critical component: high-performance steel tubing. The selection of the right type of pipe is not merely a technical detail but a fundamental dec...