results for this questionIs longitudinal welding better than helical welding?Is longitudinal welding better than helical welding?Besides,T-shaped welding joints incline to cause welding residual stress,which lays potential risk for future fatigue crack.Therefore,though having low cost and simple manufacturing technique,the overall performance of longitudinal welded pipe is less promising than the helical welded pipes.Difference between helical welded pipes and longitudinal welded pipessp.infoHelical Pipe,SSAW Welded Steel Pipes,Carbon Steel
Q195 Q215 Q235 Q345 20# 10# STANDARD ASTM GB BS DIN EN PAYMENT T/T.L/C SSAW Helical Steel Pipe is a Helical Pipe welded by automatic double wire and double side submerged arc welding process,which is made of steel strip coils as raw material,extruded at high temperature and welded by automatic double wire and double side submerged