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 /  / Submerged-arc welding (SAW)

Submerged-arc welding (SAW)

External welding

During the second process step, the shaped and continuously tack-welded pipes are transferred to one of the three down-stream computer-controlled internal and external SAW stands. There the submerged-arc spiral weld is completed first internally and then externally using a multi-wire technique.

A laser-controlled weld tracking system ensures that both the internal and external weld are correctly positioned with sufficient overlap. The tack weld produced during pipe forming serves as a backing to the weld and is fully remelted into it.


Dr.-Ing. Carsten Holste

Dr.-Ing. Carsten Holste
Plant Manager

Phone: +49 5341 21-6399
Fax: +49 5341 21-7813

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