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High quality astm a53 ERW weld carbon steel pipe

High quality astm a53 ERW weld carbon steel pipe, ASTM/ASME A53/SA53 Seamless and Welded Standard Steel Number of Tests: Seamless and Electric Resistance Weld (ERW) – bending, flattening, tensile on one length of pipe from each lot of 500 lengths, or less, of each pipe size. Permissible Variations for A53 steel pipe. Wall thickness: The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

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