A Brief Discussion on Quality Control of HFW Steel Pipe for Marine Service

Dealt with in the paper are descriptions and analysis of the corrosion resistance,fracture resistance (CTOD),quality stability and quality assurance system of the marine-service HFW pipe. Also proposed are measures to improve the carrion resistance and quality stability of the said pipe’s weld seam as well the in-deep research orientation in this field. The analysis leads to such a conclusion that groove corrosion could be reduced by using strip steel with much lower S content,and that higher HIC resistance could be obtained by means of getting the welding seam undergo the heat treatment process of quenching + tempering.