What is the difference between SAW and ERW 1

[SHTF]

Could someone please explain to me what is the difference between ERW and SAW welding. Also what are the advantages and disadvantages for both of the process. Thank very much

 

[SJones]

SAW

http://www.bergpipe.com/files/ep_tp_77_07en.pdf

ERW

http://www.thermatool.com/informati...REQUENCY-WELDING-OF-LOW-CARBON-STEEL-TUBE.pdf

Steve Jones
Materials & Corrosion Engineer

http://www.linkedin.com/pub/8/83b/b04

 

[blacksmith37]

These are of course dramatically different processes and many texts are necessary to describe them (and SAW =DSAW =UOE +/- and it may have spiral seam). But from a very general perspective: ERW tends to be thinner wall, smaller diameter than SAW. For NDE, UT is used with both while RT is only used on SAW and EMI only used on ERW.

 

[SHTF]

Thank very much guys !