The Features of Drill Pipe

　　API Drill Pipe belonging to American Standard, A106 including GrA and GrB. The former is equivalent to the domestic 10 # material. GrB is equivalent to the domestic 20 # material. Grb is one of the commonly used materials. drill pipe, including cold drawing and hot rolling two processes. In addition to the different production processes, the two in accuracy, surface quality, minimum size, mechanical properties, organizational structure are different. Widely used in petroleum, chemical, boiler, power station, shipbuilding, machinery manufacturing, automotive, aerospace, energy, geology, construction and military industries.