There is no doubt that the seam of welded tubes is a really weak-point. Therefore, seamless tubes have to be used for applications with highest safety requirements. For the production of these tubes a solid block is penetrated by a piercing plug before the tube is brought to its desired size.

Piercing plugs from PLANSEE, made of TZM, show perfect results with special-alloyed steels as well as the production of copper tubes - and outdo conventional piercing plugs made of special-alloyed steel.

PLANSEE supplies:

• Piercing plugs made of TZM