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LSAW Process Flow
LSAW (Longitudinally Submerged Arc Welded Steel pipes) in leaflets plate as raw material, the steel plate in the mold or molding machine pressure (volume) into using double-sided submerged arc welding and flaring from production.
Longitudinally Submerged Arc Welded carbon steel pipes
(LSAW Pipes)with JCOE forming mode

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Roller Pipes Process Flow

Range of roller pipes: Outer diameter: Ф1200-3800mm  |  Wall thickness: 12-120mm  |  Unit length (max) 3.2m.

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Large-diameter thick-walled seamless steel pipe

Size:1120×120-150, 630-1000×40-100, 530-630×40-100, etc. 
Material:10#, 20#, 35#, 45#, 16Mn, 27Simn, Alloy , etc.

UOE (Uing and Oing forming) Pipes

UOE is a method used for production of longitudinally welded large diameter pipes. Longitudinal edges of steel plates are first beveled using carbide milling equipment. Beveled plates are then formed into a U shape using a U-press and subsequently into an O shape using an O-press. read more...

The UOE mill is the best suitable process to meet customers' requirements by virture of the characteristic of high production efficiency, stable product quality and various accessories for manufacturing and inspection.

UOE (Uing and Oing forming) Pipes

UOE mill adopts Uing and Oing forming, the formed pipes are welded inside by five internal welding stations with three wires for each weld,and welded outside by four external welding stations with three wires for each weld.


Outside Diameter : Φ508-Φ1118mm (20"-44")
Wall Thickness : 6.4-25.4mm (1/4"-1")
Ouality Standards : API, BS, ASTM , JIS, DIN, GB , ISO, DNV
Length : 9-12.2m (30'-40')
Grades : GB/T9711 L190-L555 (API 5L A-X80)
We are able to provide customers with quality products and perfect service.
If you want to know more information, please kind to visit our website.


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