Alloy tube (Alloy pipe) is a large diameter seamless steel pipe plant, alloy seamless pipe and tube into the structure of the high-pressure resistant alloy tube. The main production standards different from the alloy tube and large diameter seamless steel industry 45 # of quenched and tempered alloy tube annealing change its mechanical properties. Achieve the desired processing conditions. Its performance than the average of seamless steel tubes and varied use of higher value 30mn large diameter seamless steel pipe, alloy tube containing the chemical composition of Cr more, high temperature, low temperature resistance, corrosion resistance. Carbon seamless alloy composition does not contain little or alloy composition, alloy pipe in the petroleum, aerospace, chemical, electric power, boiler, military and other industries use more extensive because the mechanical properties of the alloy tube varied good adjustments. Executive standard Chinese National Standard GB / T8162-2008 GB / T8163-2008 GB3087-2008 GB6479-2000 GB9948-2006 GB5310-2008 ASME SA210 - American Boiler and Pressure Vessel Code ASME SA213 - American Boiler and Pressure Vessel Code DIN17175 - German industrial standard 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. 20 # large diameter seamless steel pipe, large diameter seamless steel pipe Co. virtue by virtue Liaocheng pipe industry. Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead virtue of Industry and you work into the brilliant, for a better future!