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  • Date: 2014-11-10The maintenance of spiral welded pipe equipment

    As the name suggests, spiral welded pipe hydrostatic testing machine is a special machinery used in the production of spiral welded pipe.

  • Date: 2014-11-07The deformation of steel pipe after hardening

    The root cause of deformation when hardening the steel pipe is the uneven cooling of all parts of the steel pipe,which results in residual stress within the steel tube, and further causes deformation of the steel pipe.

  • Date: 2014-11-06How to preserve the SSAW steel pipe

    For Spirally Submerged Arc Welding steel tube, the specifications and strength are generally regarded higher than the LSAW steel pipe.

  • Date: 2014-11-05Hardness testing of seamless steel pipe

    Mechanical performance testing method is mainly divided into two classes, one kind is tensile test, one kind is the hardness test.

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