What pipe used in indoor natural gas pipeline
Iron pipe, stainless steel pipe, plastic pipe for natural gas and stainless steel hose!The long-term use of pipe and fixed with a pipe and stainless steel pipe; connecting pipe and gas pipe equipment can use stainless steel hose and plastic pipe, but two different life, stainless steel hose life ten years, plastic tube life seems to be 18 months......
As long as 4843km of the west east gas pipeline line using 1219mm diameter of X80 steel pipeline steel, the gas pressure increased to 12Mpa. Generally speaking, X80 steel is ferrite and bainite dual phase structure, X100 pipeline steel is bainite structure, X120 pipeline steel for ultra low carbon bainite and martensite. For the pipeline of natural gas pipeline, strength, toughness and weldability are three basic quality control indexes
Because of the difference of technology, there are some differences in the pipeline steel produced by different manufacturers. 1960s, the general use of X52 steel grade, in 70s using X60, X65 steel grade, 80-90 to X70 steel. Some foreign countries have begun to use X80 steel gas pipeline. With the continuous development of pipeline steel, Canada and other countries have laid X100 and X120 pipeline steel test section. For the first time in our country, the X80 grade pipeline steel was used in the test section of 7.71km in the tie line project
Straight or spiral welded steel pipes used for X or L series for long distance pipelineSteel pipe is the main material. The natural gas transmission steel pipe is a special metallurgical product formed by the deep processing of the plate
