Features:

Application in oil field. Compared with seamless pipes, welded steel pipes have the characteristics of higher accuracy and uniform wall thickness. They have been widely used in oil and gas field sites. In order to meet the demand for low Cr steel welded pipes in oil and gas fields, low Cr steel welded pipes have been developed. Q345B grade low-alloy high-strength structural steel, trial-produced the production process of seamless steel pipes for submarine oil pipelines, analyzed the chemical composition control and the influence of the rolling process on the performance of the steel pipe, and proposed the use of Q345B low-alloy high-strength structural steel. Satisfying the user's requirements for this product, and obtaining the appropriate control range of each element in the steel and controlling the final rolling temperature of the steel tube are effective ways to improve the overall performance of the steel tube. The original cold-drawn process is more complicated when the cold-drawn steel pipe is produced by the 170 seamless steel pipe factory of Yegang.