LSAW Steel Pipe

　　 Seamless steel pipe is a hollow section, the surrounding no seam of the long steel. The steel pipe has a hollow section, a large number of pipes used to transport fluid, such as the transmission of oil, natural gas, gas, water and some solid materials pipeline. 　　Steel and round steel and other solid steel compared to the same bending strength, the weight is light, is an economic section of steel, widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, car drive shaft, bicycle Racks and steel scaffolds for construction purposes. 　　The use of steel pipe manufacturing ring parts, can improve the utilization of materials, simplify the manufacturing process, saving materials and processing time, such as rolling bearing rings, jack sets, etc., has been widely used to manufacture steel. Steel pipe or a variety of conventional weapons indispensable materials, barrels, barrels and so on to steel to manufacture. Steel pipe by cross-sectional area...

    What Is The Classification And Grades Of Drill Pipes ?     Oil drill pipe is seamless tubing which was used to rotates the drill bit and circulates drilling fluid in the well. API spec. 5DP specifies the technical delivery conditions, size, weight, grade, material properties and other requirements for drill pipe. The standard gives us the guidelines for inspection & classification of your used drill pipe string. Dill pipe can be divided into following levels, classes and grades:     PSL-1: Specifies wall thickness, impact strength, and yield strength requirements specific to the material grade.     PSL-2: Additional mandatory requirements.     PSL-3: Additional mandatory requirements.     Drill pipe class defines the physical condition of the drill pipe in term of dimension ,surface damage and corrosion.     Class 1(New class) : Brand new (never used) and the strongest.     Premium(used...