With the improvement of weld quality and NDT reliability of welded pipe, the use of welded pipe is more and more extensive, replacing seamless steel pipe in more fields and uses, the growth rate of welded pipe is faster than seamless pipe.
High frequency welding process has many advantages, and it has wide adaptability to billet material and steel pipe size. High frequency welding can not only improve the welding speed, but also obtain the weld with small heat affected zone and good penetration.
In terms of quality, high frequency welded pipe has the advantages of good weld quality, small internal and external burr, high welding speed and small power consumption, which can be widely used and promoted.
