Classification of ERW Straight Seam Welded Steel Pipe
Date:2020-05-15 keywords:erw pipe,classification
ERW straight seam welded steel pipe (ERW Pipe
), also known as "resistance welded straight seam welded pipe", ERW straight seam welded pipe is mainly divided into ERW AC welded steel pipe and ERW DC welded steel pipe two forms. ERW straight seam welded pipe is divided into low frequency welding, intermediate frequency welding, super intermediate frequency welding and high frequency welding according to the frequency. High frequency welding is mainly used for the production of thin-walled steel pipes or ordinary thick-walled steel pipes. High-frequency welding is divided into contact welding and induction welding.