The difference of precision steel tubes and seamless pipe in Huangshan, Huangshan stainless steel clad pipe, Huangshan cold drawn precision steel tubes characteristics, Huangshan fluid pipe, the Huangshan rolled precision seamless delivery of the state, the Huangshan q345b seamless steel tubes, Huangshan hot-rolled seamless steel pipe, the Huangshan large-diameter seamless steel pipe, the Huangshan seamless steel pipe price. pipe, the Huangshan Q345B seamless steel pipe, the Huangshan large-diameter seamless steel tubes, cold-rolled Jing (reversal) seamless steel pipe. Liaocheng Tongyuan Steel Pipe Co., Ltd. spirit of enterprise: "unity and hard work, hard work, dedication, pragmatic and innovative" to seek a sincere cooperation in a wide range of areas to improve the enterprise's comprehensive strength. 


 The Liaocheng through source Steel Pipe Co., Ltd. 

 Tel :0635-8888475 
 8888476 
 Phone: 13206355285 
 18963533215 
 Fax :0635-8888476 
 Manager: Manager Hu Fu Jingli 
 E-mail: sdtygg88163.com 
 Address: Shandong Liaocheng Dadong steel pipe market 
 National Pipe Information Network: http://www.qgggxxw.com/ 
 Company website: http://www.szzmy.com/ 


 The Liaocheng Tongyuan Steel Pipe Co., Ltd. is a professional production, sales, service at the customer's business, the company has a rectangular seamless steel pipe production plant and a precision seamless steel pipe factory, professional production: rectangular seamless steel tubes, precision rectangular steel pipe seamless square tube: structure steel pipe (GB8162-2010), the fluid steel pipe (GB8163-2010), the low-pressure boiler tube (GB5310-2010), high pressure boiler pipe (GB5310-2010) of the Company through the ISO9001: 2001 international quality management system certification. 
 Material: 10 # seamless steel tubes, 20 # steel, 35 steel, 45 # seamless steel pipe, 20G, 20A, 45Mn2, 27SiMn, 20Cr, 30Cr, 35Cr, 40Cr, 38CrS12CrMo, 20CrMo, 35CrMo, 12CrMoV, of 12Cr1MoV , 38CrMoAL20G,, 15CrMoG, 12Cr2MoG, 12Cr1MoVG and so on. 

 The company also operating agent: Panzhihua Iron and Steel (Chengdu), Baotou, Tianjin (large seamless), smelting steel, Anshan Iron and Steel, Baoshan Iron and Steel, Xining, Wuxi, Changzhou, Hengyang and other steel production of high quality seamless pipe, alloy tube. 
 Shandong seamless steel pipe factory business philosophy: "the same product than the quality of the same quality than price, the same price than service, the same service than the reputation". 
 The entrepreneurial spirit: unity and hard work, hard work, dedication, pragmatic and innovative "to seek a sincere cooperation in a wide range of areas to improve the enterprise's comprehensive strength. 

 Company annual sales of Chengdu Iron and Steel Group, Daye Steel Group, Baotou Steel, Baosteel Group, Anshan Iron and Steel Group, Tianjin big seamless, Xi Ningte steel, Wuxi steel, Hengyang Steel and other major steel production of seamless steel tubes and alloy tube. Main Material: 20 #, 35 #, 45 #, 20G, 20A, 40Mn2, 45Mn2, 27SiMn, 40MnB, 20MnVB, 20Cr, 30Cr, 35Cr, 40Cr, 45Cr, 50Cr, 38CrSi, 12CrMo, 20CrMo, 35CrMo, 42CrMo, 12CrMoV , execution of 12Cr1MoV, 38CrMoAL, 50CrV, 20CrMnSi, 30CrMnSi, PLATES, 20CrMnTi, 30CrMnTi, 12CrNi2, 12CrNi3, 12Cr2Ni4, 40CrNiMoA, 45CrNiMoVA, 20G, 20MnG, 25MnG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 12Cr3MoVSiTiB and other standards: GB / T8162-99 structural tube, the GB/T8163-99 fluid tube the GB/T3087-99 in low pressure boiler pipe, GB/T5310-95 high pressure boiler tube, GB/T6479-2000 fertilizer dedicated pipe, 27SiMn hydraulic support, high-pressure alloy pipe the GB/T9948-85 oil cracking pipe GB9948-88, for geological drilling pipe YB235-70, automobile axle casing YB/T5035-96. 
 Our company is a large number of alloy tube, high pressure pipes, seamless square tube shaped seamless steel pipe stock, will be preferential prices, wholesale and retail the way to provide you with fast quality service and welcome new and old customers to negotiate, Conference call. 

 Honor: Liaocheng Tongyuan Steel Pipe Co., Ltd. is China's steel pipe Harbor http://www.zgggxxg.cn/ named the 2010 Top 10 credit units tongyuan, lodge a complaint, the transaction is all praise! Welcome to purchase! 
 The difference of precision steel tubes and seamless pipe, seamless steel pipe the main features of the welding seam, and can withstand greater pressure. Products can be very rough cast or cold call. 2, precision seamless steel pipe products in recent years, mainly within the hole, the outer wall of tighter tolerances and roughness size. 
 Characteristics of cold drawn precision steel tubes. Outer diameter is smaller. (2) high precision can do small batch production. (3) high precision cold drawn finished, good surface quality. 4 steel pipe cross area is more complex. 5 steel pipe superior performance, the metal is relatively dense. 
 Implementation of standards GB/T3639 GB/T8713 DIN2391-2 HK15-2000 
 Cold rolled precision seamless steel pipe commonly used material 
 20 #, 45 #, 16Mn, 40Cr, of 12Cr1MoV and so on. 
 Cold-rolled precision seamless delivery status 
 The general explanation of abbreviations of the names 
 Light pull (rolled) - hard the BK (+ C) the final cold forming, heat treatment, therefore, steel plasticity, the degree of plasticity is not guaranteed 
 Small deformation of cold drawn bright drawing - soft BKW (+ LC) after final heat treatment, to continue plus hours steel pipe allowed within the boundaries of cold deformation (bending, flaring) 
 Time to eliminate the stress relief heat treatment after light pull (rolled) - stress relief annealing BKS (+ Sra) end of cold forming, 
 Steel pipes within the boundaries of appropriate reprocessing 
 To annealing GBK (+ A) steel tube after the final cold forming, annealing in a non-oxidizing medium shielding gas 
 Final cold forming normalizing NBK (+ N) tube, the phase change points or more, 
 Annealing in non-oxidizing medium protective atmosphere 

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