According to incomplete statistics, there are more than 240 seamless carbon steel pipe manufacturers in my country, and more than 250 seamless carbon steel pipe units, with an annual production capacity of about 4.5 million tons. In terms of caliber, those with <φ76 accounted for 35%, and those with <φ159-650 accounted for 25%. In terms of varieties, 1.9 million tons of general-purpose pipes, accounting for 54%; 760,000 tons of petroleum pipes, accounting for 5.7%; hydraulic props and precision pipes of 150,000 tons, accounting for 4.3%; stainless pipes, bearing pipes, and automotive pipes totaling 50,000 Tons, accounting for 1.4%.
Manufacturing Process:The raw material of the Ms Seamless pipe is a round tube blank, which is cut by a cutting machine into a billet with a length of about 1 meter, and is sent to the furnace for heating via a conveyor belt. The billet is fed into the furnace and heated at a temperature of approximately 1200 degrees Celsius. The fuel is hydrogen or acetylene. The temperature control in the furnace is a key issue.
After the quality inspection of steel pipes, strict manual selection is required. 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.
Tips: Seamless hydraulic tube: Cold drawn and annealed seamless low carbon steel tubing for use in pressurized hydraulic lines. Some industrial uses include Locomotive, Heavy Equipment, Automotive, and Agricultural applications.