How to identify people often think that the magnet alloy steel pipe steel pipe adsorption, and verify the authenticity of their advantages and disadvantages, do not smoke, non-magnetic, considered a good, genuine; absorption by magnetic 12cr1movg small-diameter pipe, is considered to be counterfeit fakes. In fact, this is an extremely one-sided, no practical method to identify errors. Many types of steel pipe, according to the organizational structure at room temperature can be divided into several categories: Normally used as a decorative tube plate is austenitic steel pipe majority of 304, in general, is a non-magnetic or weakly magnetic, but the smelting fluctuations caused by the chemical composition or the processing status of the different magnetic properties may also occur, but it can not be considered counterfeit or substandard, which is what causes it? Also 20cr small-diameter pipe, steel pipe 304 through cold working small-diameter pipe mill, the organizational structure will be transformed to martensite, the greater the degree of cold deformation martensite transformation, the more the greater the magnetic steel. Like steel batch numbers, production Φ76 tube, no significant magnetic induction, production Φ9.5 tube. Ling bending deformation due to the larger number of magnetic induction is obvious, because the production of rectangular tube pipe deformation than large, especially knuckle part, more intense magnetic distortion is more evident. To completely eliminate the magnetic steel above 304 causes, can be opened to restore stability austenite at high temperature solution treatment, thereby erasing magnetic. In particular, proposed that the 304 magnetic steel pipe caused due to the above reasons, the steel pipe and other materials, such as 430, magnetic steel is absolutely not the same level, ie 304 steel magnetic always shows weak magnetic . This tells us that if the steel pipe with a weak magnetic or non-magnetic entirely, should determine for 304 or 316; if the magnetic steel of the same, showing a ferromagnetic, the judgment is not 304. Shandong Liaocheng Polygram is a professional commitment to seamless steel pipe, alloy pipe sales company. Annual sales of Chengdu, Baoshan Iron and Steel, Hengyang, Baotou, Anshan, Tianjin, Hong Gang, Wuxi and other major manufacturers of seamless pipe, to operate a special thick-walled steel pipe and tube-based alloy. I will be with a good reputation and solid strength, quality products, low prices and service to customers. The unit can produce specifications (159-377) × 8-12 seamless steel tubes, as detailed in the product description. Material: 10 #, 35 #, 45 #, 20G, 16Mn (Q345), 27siMn etc. Product Name: seamless steel pipe, general structure pipe, transmission fluid, low pressure boiler pipe, high pressure boiler pipe, fertilizer, oil cracking pipe, ship tube, hydraulic prop tube. Alloy tube material: 12CrMoV, 15CrMo, Cr5Mo, 10CrMo910, A335P11, T91, P91 executives: Panzhihua Iron and Steel (Chengdu), Baotou, Tianjin (Seamless), Steel, Anshan Iron and Steel, Baoshan Iron and Steel, Hengyang and other steel production of high quality Seamless. The company's operating philosophy: "the same product than the quality of the same quality than price, the same price than service, the same service than credibility." Entrepreneurship: Innovation is the eternal Lord, beyond the relentless pursuit. Our company is willing to colleagues and the community, gentlemen, friends, ladies and distinguished customers hand in hand, common development, with painted grand blueprint for the new century. 12cr1movg small diameter steel pipe | 45 # small diameter steel pipe | small-diameter steel pipe provided by the Shandong Liaocheng Steel Pipe Manufacturing Co., Polygram. Shandong Liaocheng Polygram Pipe Manufacturing Co. (www.lcbljgg.com) (www.lcbljgg.com) (www.sdlcblj.com) (www.bljggzz.com) Shandong Liaocheng, wire, pipe, plate manufacturing equipment leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Polygram steel leader with the staff warmly welcome all inquiries negotiations to create Polygram steel a better future. You can also access (www.lcbljgg.com/supply_details_39208575.html), for more information about the company.