Some rules must be followed when storing seamless steel pipes

The pipe jacking method to produce seamless steel pipes was proposed by Heinrich Erhard of Germany in 1892.

In order to complete the construction safely and quickly, it is essential to calculate the pressure of the seamless pipe, especially the calculation of the internal pressure.

When the directionally emitted ultrasonic beam encounters defects when propagating in the tube, it will produce wave reflection and wave attenuation. After the defect reflection wave is picked up by the probe, the flaw detector processes the defect echo signal and gives a quantitative Defect indication.

The quality of the tube billet is the basic factor that determines the quality of seamless steel tubes for medium and low pressure boilers.

In order to align the nose of the hot-rolled seamless steel pipe with the front end of the tube blank during piercing, a shallow circular hole is processed at the front end of the tube blank before the tube blank is pierced. This process is called centering.