Hot-rolled seamless steel pipe

- Sep 06, 2017 -

Hot-rolled seamless steel pipe delivery status is generally hot-rolled state after heat treatment for delivery. Hot-rolled seamless steel pipe after the quality inspection to go through the rigorous manual selection of workers, after the quality of the surface to be painted oil, and then followed by a number of cold drawing experiments, hot rolling after the perforation of the experiment , If the perforation is too large to be straightening correction. In the straightening and then sent by the transmission device to the flaw detector for testing, and finally labeled, the specifications arranged after the placement to the warehouse.

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