Development of X65 Steel Grade SAWL Pipe for CO2 Transportation
In order to develop large thick wall SAWL pipe for supercritical CO2 transportation,the composition of the pipe was designed.The X65M steel grade Φ610 mm×38 mm SAWL pipe for supercritical CO2 transportation was manufactured by JCO process,and the physical and chemical properties of the pipe were tested.The results show that the yield strength and tensile strength of the base metal after tube making are improved.At-30℃and-60℃,the charpy impact properties and hardness of base metal,weld and heat affected zone meet the technical requirements.In the simulated corrosion environment,the corrosion rate of the base steel pipe and the weld is less than 0.05 mm/a,and it has a good resistance to CO2 corrosion.The analysis of physical and chemical test data shows that the developed X65M steel grade Φ610 mm×38 mm SAWL pipe can meet the requirements of supercritical CO2 transportation.
X65 steel pipesupercritical CO2 transport pipeSAWL pipecorrosion resistance
万方数据
维普
