Dimensional tolerance of erw steel pipe

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Dimensional tolerance of erw steel pipe


Standard  Out Diameter  Tolerance of Pipe End  Tolerance of Pipe Body Tolerance of Wall Thickness
 API 5L  219.1-273.1  +1.6mm, -0.4mm   ±0.75%  +15%, -12.5%
 274.0-320       +2.4mm, -0.8mm  ±0.75%   +15%, -12.5% 
 323.9-457  +2.4mm, -0.8mm  ±0.75%   +15%, -12.5%
 508  +2.4mm, -0.8mm  ±0.75%  +17.5%, -12.5%
 559-610  +2.4mm, -0.8mm  ±0.75%  +19.5%, -8%
erw pipe