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Dimensional tolerance of ERW steel pipe

ERW (Electrical Resistance Welding) pipes are manufactured by cold forming of steel coil into a round cylindrical shape and are used for various engineering purposes.ERW steel pipe is formed by rollin...

2023-12-18 15:02:29

ERW (Electrical Resistance Welding) pipes are manufactured by cold forming of steel coil into a round cylindrical shape and are used for various engineering purposes.

ERW steel pipe is formed by rolling the plate and welding the seam.

For standard pipe, except as provided for thin-wall pipe, the tolerances of diameter shall be in accordance with the following table:

Tolerance of outside diameter

Out Diameter	Tolerance of Pipe End	Tolerance of Pipe Body
219.1-273.1	+1.6mm, -0.4mm	±0.75%
274.0-320	+2.4mm, -0.8mm	±0.75%
323.9-457	+2.4mm, -0.8mm	±0.75%
508	+2.4mm, -0.8mm	±0.75%
559-610	+2.4mm, -0.8mm	±0.75%

Tolerance of wall thickness

Grade	Out Diameter	Wall Thickness
/	219.1-457	+15%, -12.5%
B	508-610	+17.5%, -12.5%
X42-X80	508-610	+19.5%, -8%

Cangzhou Shenlong erw pipe and LSAW pipe. Pipe produces c is the source factory of steel pipe with good quality. Welcome to visit and investigate.

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Cangzhou Shenlong Pipe Manufacturing Co., Ltd. is a company& supplier& manufacturer& factory specialized in the production, processing and sales of various steel pipes, such as seamless pipe, welded pipe, straight seam steel pipe, spiral welded steel pipe, hot galvanized steel pipe, coating steel pipe, stainless steel pipe, and pipe fittings, the production base is located in Cangzhou.

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