For standard pipe, except as provided for thin-wall pipe, the tolerances of diameter shall be in accordance with the following table:
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% |
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% |
Welded steel pipe (steel pipe manufactured with a weld) is a tubular product made out of flat plates, known as skelp, that are formed, bent and prepared for welding.
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