Seamless pipe supplier tells you that a seamless pipe is a round, square, or rectangular steel with a hollow section and no joints on the periphery. Seamless steel pipes are made of steel ingots or solid tube billets through perforation into capillary tubes, and then made by hot rolling, cold rolling or cold drawing. Seamless pipe supplier tells you that seamless steel pipes have a hollow section and are mostly used as pipes for conveying fluids. Compared with solid steel such as round steel, steel pipes have the same bending and torsion strength and are lighter. It is an economical cross-section steel. It is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, bicycle frames, and steel scaffolding used in construction.

Method/Step
1.Seamless pipe supplier tells you that seamless steel pipes are used to manufacture various low and medium pressure boilers, superheated steam pipes, boiling water pipes, water wall pipes and superheated steam pipes for locomotive boilers, large smoke pipes, small smoke pipes and arch brick pipes, etc. . Use high-quality carbon structural steel hot-rolled or cold-rolled (dial) seamless steel pipe. Seamless pipe supplier tells you that it is mainly made of No. 10 and No. 20 steel. In addition to ensuring the chemical composition and mechanical properties, a hydraulic test, such as crimping, flaring, and flattening, shall be performed. Hot-rolled products are delivered in hot-rolled state, and cold-rolled products are delivered in heat-treated state. The inner diameter of the steel pipe is determined by the length of the outer diameter of the drill bit of the sizing machine.
2. The seamless pipe supplier tells you that after the seamless steel pipe is sized, it enters the cooling tower and is cooled by spraying water. After the steel pipe is cooled, it will be straightened. After straightening, the steel pipe is sent to the metal flaw detector (or hydraulic test) by the conveyor belt for internal flaw detection. If there are cracks, bubbles, etc. inside the steel pipe, it will be detected.
3. The Seamless pipe supplier tells you that after the quality inspection of the steel pipe, paint the serial number, specification, production batch number, etc. with paint. It is hoisted into the warehouse by a crane. Seamless pipe supplier tells you that under the condition of the same cross-sectional area, structural steel pipes have better all-round bending resistance and rigidity than square, flat steel and other types of steel because of the bending resistance of square, flat steel and various types of steel. All have strong directionality, but the bending resistance of steel pipes not only has no directionality, but also has the strongest bending resistance per unit mass.