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From light building frames to heavy industrial structures, from curtain wall projects to new energy fields (such as photovoltaic brackets), Tianjin Yuantai Derun square tubes meet diverse needs with full specifications and high performance.

Tianjin Yuantai Derun Group has specialized in square tube production for over 20 years and operates two modern production bases in Tianjin and Tangshan, with an annual production capacity exceeding one million tons, ranking among the top in the world.

Tianjin Yuantai Derun: Global leader in square tubes, with 20+ years’ expertise & dual production bases in Tianjin & Tangshan. Trusted by industries worldwide.

Yuantai Derun secures major SCO infrastructure order in Tashkent, showcasing precision engineering & reliable steel solutions. A testament to trusted Chinese manufacturing excellence.

Hot-dip galvanized steel is an integral part of modern construction projects and is the primary material for steel structures that require corrosion protection.

Durable rolled and welded steel pipes for construction, structural, and industrial use. Available in custom diameters, thicknesses & lengths. Strong welds, corrosion-resistant.

China's largest steel pipe manufacturer, ex-factory price, complete specifications, complete system service.

Square rectangular tube have become one of the core materials of photovoltaic support structure due to their high quality mechanical properties, flexible size adaptation and weld connection methods.

Hot-dip galvanizing and cold-dip galvanizing are both methods of applying zinc to steel to prevent corrosion, but they vary greatly in process, durability, and cost.

The processing of welded steel pipes is a multi-step, multi-process manufacturing process involving key links such as material selection, forming, welding, heat treatment, and finishing.

Straight seam welded pipe has the advantages of high strength, good sealing and low cost, and is widely used in many fields

The main difference between hot rolled steel and cold rolled steel is the temperature at which they are processed.

H-beam is a new type of economical steel for construction.

Spiral welded pipe is a welded steel pipe produced by a continuous spiral forming process. It has the characteristics of light weight, high strength, corrosion resistance and long service life.