
Continental Steel Co.,Ltd (CSC) is a comprehensive enterprise integrating manufacturing, Inventory and exporting in China.As a pioneering producer of steel pipes and fittings, Continental Steel Co.,Ltd is always committed to providing highest quality and one-stop service to customers worldwide.
Adhering to best quality, integrity, win-win and creativity, Continental Steel Co.,Ltd(CSC) is devoting to build a better future with customers together.
Strict quality control procedures assuring the highest quality products.
Professional technique team & experienced project management team helping customers in different industries sharpen their competitive edge.
Strong company strength brings best financial, technical and after sale support.
20 Branch companies
More than 10000 employees
30,000 square warehouse
32 years of historySelecting the right structural steel is critical for projects that demand high load capacity, long service life, and reliable mechanical performance. While both seamless and welded square tubes are widely used across industries, seamless square tubes provide superior structural integrity because they are manufactured without a longitudinal weld seam. Their continuous steel structure offers more uniform mechanical properties, improved fatigue resistance, and greater reliability under demanding operating conditions.
Round-to-square conversion is an advanced forming process that transforms a seamless steel tube from a circular cross-section into a square or rectangular profile. Unlike welded square tubing, the finished product retains the seamless structure of the original tube, providing higher strength, improved pressure resistance, and better structural integrity. Widely used in construction, machinery, transportation, and industrial engineering, seamless square tubes combine the mechanical advantages of seamless steel pipes with the efficient load-bearing characteristics of square and rectangular sections.
Low carbon steel square tubes come in various types, such as seamless tubes/ERW tubes/welded tubes/machined tubes/LSAW tubes. They also come in a variety of shapes, such as round, square, rectangular, hydraulic tubes, etc. ASTM A333 low carbon steel square tubes range in size from 1/8″NB to 30″NB
CSC brings rich experience in steel construction industry. For projects needs we provide a combination of technique design and qualified steel products to ensure a successful project.
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Continental Steel Co.,Ltd(CSC) is a pioneering manufacturer, stockist, and supplier of steel pipe products.