Hot-rolled seamless steel pipe production line production process using a conical piercing, precision three-roll rolling and micro tension q345c large diameter seamless pipe sizing, production specifications for: Φ32-Φ340mm large diameter seamless pipe, wall thickness: 4.5-50mm , hot-rolled seamless steel pipe production of 30,000 tons. To ensure high dimensional accuracy and surface quality inside and outside the large diameter seamless pipe, line equipped with ultrasonic flaw detection systems, eddy current testing system, magnetic flux leakage detection system, automatic spray weighing scale length measuring system. The company has 700 tons, 500 tons of cold-drawn steel cylinder production line 42crmo large diameter seamless pipe, 300 tons of cold drawn steel pipe production line two cylinders. Cold drawn steel cylinder production line annual production capacity of 80,000 tons, the production specifications: Φ108-Φ559mm, wall thickness: 2.5-20mm. GB5310-2008 (high-pressure boiler seamless steel tubes). Mainly used for power plants and nuclear power plant boilers, high temperature, high pressure fluid delivery header and pipes. Representative material for 20G, 12Cr1MoVG, 15CrMoG so on. GB5312-1999 (ship Seamless Carbon and carbon-manganese). Mainly used for ship boilers and Superheater I, II grade pressure pipe. Representative material for 360,410,460 steel grade and so on. GB6479-2000 (high pressure chemical fertilizer equipment, seamless steel pipe). Mainly used for conveying high temperature and high pressure fluid pipe fertilizer equipment. Representative material for 20,16Mn, 12CrMo, 12Cr2Mo so on. GB9948-2006 (petroleum cracking seamless steel pipe). Mainly used in oil refinery's boilers, heat exchangers and pipes conveying fluid. The representative material for 20,12CrMo, 1Cr5Mo, 1Cr19Ni11Nb so on. GB18248-2000 (seamless steel gas cylinders). Mainly used for the production of gas, hydraulic cylinders. The representative material for 37Mn, 34Mn2V, 35CrMo and so on. Large diameter seamless pipe industry _ _ virtue Taian large diameter seamless pipe is provided by virtue of Liaocheng Industry Co., Ltd. Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) Shandong Liaocheng, steel leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Industry leaders in the United States and Germany with the staff warmly welcome all inquiries negotiations to create the virtues pipe industry a better future.