Seamless pipes have brought down the demand of ERW pipes. But it is a wrong idea to immediately arrive at a conclusion and falsely claim the inferiority of ERW pipes when compared with seamless pipes. Both have their unique properties and it all depends on the area of application and other technical parameters that define the necessity of type of pipe. Remember, successful engineering is not only dependent on feasibility of application but also on cost economics. So, lets have a glance on those differences between seamless and ERW that can make huge differences for your application and economics of operation.