Low and medium pressure boiler tubes generally refer to seamless steel tubes used in low pressure boilers (pressure less than or equal to 2.5MPa) and medium pressure boilers (pressure less than or equal to 3.9MPa). They can be used to manufacture superheated steam tubes, boiling water tubes, and water cooling for low and medium pressure boilers. Wall pipes, smoke pipes and arch brick pipes are generally made of hot-rolled or cold-rolled high-quality carbon structural steel such as No. 10 and No. 20. Tests such as water pressure, crimping, flaring, and flattening are usually required to ensure product quality and performance.