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; suck those magnetic, 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? Another machining with thick-walled steel pipe, steel pipe 304 through cold working, 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. 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. Why are threaded with inner tube boiler tube with a hollow section with a lot of transportation, a lot of fluids used for pipeline transportation, such as the transportation of oil, gas, gas, water and some solid materials, pipes and so on. And other high-pressure boiler tube and solid steel bar compared to the same torsional strength in bending, lighter, high-pressure boiler pipe is an economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle frames and construction using steel scaffolding. High-pressure boiler pipe manufacturing annular parts, can improve material utilization, simplify the manufacturing process, saving materials and processing time thick-walled steel pipe, such as bearing rings, jack sets, has been widely used to manufacture steel. High-pressure boiler pipe threaded or indispensable material ,, barrel would have to make steel. Threaded high-pressure boiler pipe cross-section of different shapes can be divided into tube and shaped tubes. Because in the perimeter of equal conditions, the largest area of ??a circle with a circular tube can carry more fluid. In addition, the circular cross section to withstand internal or external radial pressure, the force is uniform, so the vast majority of pipe is pipe. The above information is provided for you by the Shandong Liaocheng Steel Pipe Manufacturing Co., Polygram. How to identify people often think that the magnet alloy steel pipe steel pipe thick-walled steel pipe manufacturers adsorption, and verify the authenticity of their advantages and disadvantages, do not smoke, non-magnetic, considered a good, genuine; suck those magnetic, 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 processing status may appear different magnetic 45 # thick-walled pipe, but it can not be considered to be counterfeit or substandard, which is what causes it? In addition, 304 steel pipe after cold working, 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. 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. Small-diameter thick wall steel pipe, Q345B thick-walled steel (certified), thick-walled steel pipe provided by Polygram Liaocheng Steel Pipe Manufacturing Co., Ltd. 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_50260295.html), for more information about the company.