Along with the development of pipeline steel technology and the development of pipe forming and welding technology, the application range of pipe line is gradually expanded, especially in large diameter range. 2004 seamless pipe production of about 400 thousand T, the steel grade including X42 - 70, a variety of onshore and offshore pipelines.High grade pipeline steel production is the use of micro alloying heating treatment process, stainless steel seamless pipe production costs were significantly higher than that of welded pipe, and with the increase of steel grade, such as X80 above the carbon equivalent of steel pipe, the conventional process is difficult to meet the requirements of the user. At present, 12Cr1moV alloy pipe production plant in order to improve the corrosion resistance, low temperature, high temperature environment in the use of scientific research work. In this regard, Panzhihua Iron and Steel Group, Chengdu iron and Steel Co. Ltd. has a transformation of handicrafts.