Steel pipe knowledge: detailed introduction for everyone fluid seamless steel pipe

Structural Seamless Steel Tube and Fluid Seamless Steel Tube. The standard applies to seamless steel tubes for general structures and mechanical structures. The standard for fluid seamless steel tubes is applicable to the general seamless steel tubes for conveying fluids. The main difference between it and the structural seamless steel pipe is that the fluid seamless pipe performs hydraulic test one by one or ultrasonic, eddy current, and magnetic flux leakage flaw detection. Therefore, in the standard selection of pressure pipe steel, fluid seamless steel pipe should not be used.
Fluid seamless steel pipe weight calculation formula: [(outer diameter - wall thickness) * wall thickness] * 0.02466 = kg / meter (weight per meter)
Standard for fluid seamless steel tubes: GB/8163-2008
Fluid seamless steel tubes are hollow sections with no welds from head to tail. The steel pipe has a hollow section and is used in a large amount as a pipe for conveying fluids such as oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, steel pipes have a lighter weight when subjected to the same flexural and torsional strength, and are economical cross-section steels. They are widely used in the manufacture of structural and mechanical parts such as oil drill pipes, automobile transmission shafts, and bicycles. Frames and steel scaffolds used in construction. The manufacture of ring-shaped parts from steel tubes can increase material utilization, simplify the manufacturing process, save material and processing man-hours, such as rolling bearing rings, jack sleeves, etc. Currently, steel tubes have been widely used for manufacturing. The steel pipe is also an indispensable material for various conventional weapons. The barrels, barrels, etc. must be made of steel pipes. Steel tubes can be divided into round tubes and shaped tubes according to the shape of the cross-sectional area. Since the circle area is the largest under the condition of the same circumference, more fluid can be transported by the circular tube. In addition, when the ring section is subjected to internal or external radial pressure, the force is more uniform. Therefore, most steel pipes are round pipes.
The knowledge of the source of steel pipe Baidu Encyclopedia, issued by.

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