What is small caliber seamless steel pipe

Small-diameter steel pipe can be called small-caliber steel pipe. Small-diameter steel pipe can also be divided into small-diameter seamless steel pipe and straight seam (also called welding) small-diameter steel pipe. Generally, the outer diameter of steel pipe is 89mm or less. , 4mm or more; can be collectively referred to as small diameter seamless steel pipe. Seamless steel tube is a round, square, rectangular steel with a hollow section and no joints around it. Seamless steel tubes are made by punching steel ingots or solid billets and then hot rolled, cold rolled or cold drawn. Seamless steel tubes have a hollow cross-section and are used in a large number as pipes for conveying fluids. Compared with solid steels such as round steel, steel pipes have a lighter weight when subjected to the same torsional strength, and are economical cross-section steels. They are widely used in manufacturing structures. Parts and mechanical parts such as oil drill pipes, automobile drive shafts, bicycle racks, and steel scaffolding used in construction.

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