9 Application Suitable for high presure temperature and corrosive environment Normally used for less corrosive and low pressure environment.

8 Tests Seamless pipes does not require testing for weld integrity. 6 Economy Costlier More economic 7 Production Process Complex, long procurement lead time Simpler, short procurement lead time. 5 Surface Quality Rough due to extrusion process Smooth high quality surface as compared to seamless pipe. Weld areas are more prone to corrosion attacks, means less corrosion resistance. 4 Corrosion Resistance Less prone to corrosion, means more corrosion resistant. 3 Size Manufactured for nominal size 24 inch or less. Can be manufactured in long continuous lengths. 2 Length Relatively shorter in length due to manufacturing difficulties. Due to welding they are believed to withstand 20% less pressure and load as compared to seamless pipe. No Parameter Seamless Pipe Welded Pipe 1 Strength Able to withstand more pressure and load as there is no weak seam. The other differences are listed in the below-attached table. 1: Welded vs Seamless Pipe manufacturing Seamless vs Welded Pipeįrom the above paragraphs, it is obvious that seamless and welded pipes differ in their manufacturing process.

Seamless meaning