PRODUCTS

Spiral Welded Pipe

Spiral Welded Pipe

Produced by helically forming steel coil into a tubular shape and welding the spiral seam using submerged arc welding (double-sided or single-sided). Features wide diameter range, good dimensional consistency, high strength, and cost-effective production for large diameters.

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Straight Seam Welded Pipe

Straight Seam Welded Pipe

Produced by forming steel coil or plate into a tubular shape and welding the longitudinal seam using high-frequency ERW (for small to medium diameters) or submerged arc welding LSAW (for large diameters).

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Welded Square Tube

Welded Square Tube

Produced by forming steel strip into a tubular shape and longitudinally welding the seam (ERW, HFW, or laser). Features uniform dimensions, clean surface, good formability, and cost-effective production.

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Shaped Tube

Shaped Tube

Produced by cold drawing, roll forming, or welding followed by reshaping processes to achieve non-standard cross-sectional profiles. Features precise dimensional tolerances, uniform wall thickness, good surface finish, and consistent mechanical properties.

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Seamless Round Tube

Seamless Round Tube

Produced by piercing a solid billet and cold drawing or hot rolling without any weld seam. Features uniform structure, high pressure resistance, excellent dimensional accuracy, and good mechanical properties.

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Seamless Square Tube

Seamless Square Tube

Seamless square tube is a hollow structural steel profile with a square cross-section, made from seamless round pipes via precision cold drawing, cold forming or hot extrusion. It has no welded seams, uniform wall thickness, high dimensional accuracy and excellent mechanical performance, with good bending, torsion and compression resistance.

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Galvanized Square Tube

Galvanized Square Tube

Produced by welding or seamless forming followed by hot-dip galvanizing, which applies a uniform zinc coating for excellent corrosion resistance. Features smooth internal and external surfaces, good ductility, and strong coating adhesion.

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Galvanized Round Pipe

Galvanized Round Pipe

Produced by welding or seamless forming followed by hot-dip galvanizing, which applies a uniform zinc coating for excellent corrosion resistance. Features smooth internal and external surfaces, good ductility, and strong coating adhesion. Available base grades: Q195, Q235, Q345, S235JR, S355JR, S275JR, GR. B, STK400, STK500. Shapes: round, square, rectangular.

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Galvanized Square Tube

Galvanized Square Tube

Produced by welding or seamless forming followed by hot-dip galvanizing, which applies a uniform zinc coating for excellent corrosion resistance. Features smooth internal and external surfaces, good ductility, and strong coating adhesion.

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Galvanized Round Pipe

Galvanized Round Pipe

Produced by welding or seamless forming followed by hot-dip galvanizing, which applies a uniform zinc coating for excellent corrosion resistance. Features smooth internal and external surfaces, good ductility, and strong coating adhesion. Available base grades: Q195, Q235, Q345, S235JR, S355JR, S275JR, GR. B, STK400, STK500. Shapes: round, square, rectangular.

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LIANFENG CHUANGYE

Please contact us to provide you with satisfactory products and become a reliable supplier and service provider in the industry

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Email: lianfengsteel@sdlfsteel.com

Whatsapp: +86-15216351523

Tel: +86-15216351523

Address: Building 1, Wealth No.1 Plaza, Huaiyin District, Jinan City, Shandong Province, China

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