PRODUCTS

Ductile Iron Pipe

Ductile Iron Pipe

Produced by centrifugal casting process using high-strength ductile cast iron, where graphite is spheroidized to enhance mechanical properties.

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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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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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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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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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Stainless Steel Square Tube

Stainless Steel Square Tube

Produced by cold drawing or cold rolling from stainless steel coil or billet, followed by annealing and pickling to ensure excellent corrosion resistance and uniform mechanical properties. Available shapes: round, square, rectangular. Grades: 201, 304, 304L, 316L, 321, 409, 430. Outer diameter (round): 6mm – 1016mm. Wall thickness: 0.5mm – 20mm.

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Stainless Steel Square Tube

Stainless Steel Square Tube

Produced by cold drawing or cold rolling from stainless steel coil or billet, followed by annealing and pickling to ensure excellent corrosion resistance and uniform mechanical properties. Available shapes: round, square, rectangular. Grades: 201, 304, 304L, 316L, 321, 409, 430. Outer diameter (round): 6mm – 1016mm. Wall thickness: 0.5mm – 20mm.

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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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