Stainless steel bar each chemical identification coup things are good and bad points to buy things fear is fakes are now made of stainless steel valves on many industrial products, will be used for production of stainless steel, then how to identify counterfeit stainless steel, we need to take measures and methods. 1, Chongqing magnetic stainless steel processing test method - Magnetic test method is the most primitive of the most common distinction austenitic stainless steel and the easiest way to ferritic stainless steel, austenitic stainless steel is non-magnetic, but by a large reduction after cold with a slight magnetic; and pure chrome steel and low alloy steels are strongly magnetic. 2, the point of nitric acid test method - a notable feature is the stainless steel of concentrated nitric acid and dilute nitric acid has inherent corrosion resistance, this performance so that it can easily be distinguished from most other metals or alloys. However, high carbon steel type 420 and 440 points during nitric acid test is slightly corroded, non-ferrous metals encountered in concentrated nitric acid corrosion immediately, and dilute nitric acid has a strong corrosive to carbon steel. Rusty steel tube processing method there is the surface of the product is due to rust welding processors welding, welding did not do in polished stainless steel trash can, and the other is the surface of the material is likely to be made of stainless steel processors in Cutting is not aware that the material to be processed placed around cutting machines, welding slag splashing in the surface of the material, stainless steel is the most corrosion resistant because he made a polished surface, a layer of protective film, and once damaged it may erosion rusting occurs. Now the factory if hardness less precision, but also can control what Webster Hardness simple workpiece hardness. And other industries, because of hardness of stainless steel simple, easily manipulated, can be directly read the hardness value, is a plant often preferred instrument. Stainless steel plate, stainless steel, Chongqing Yao Yi Stainless Steel Products Co. provided by Chongqing Yao Yi Stainless Steel Products Co. Stainless Steel Products Co., Ltd. Chongqing Yi Yao (www.shudumy.com) strong, credible, in Chongqing, Chongqing stainless steel products and other industries and has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Arts Yiu stainless steel and you hand into the brilliant, for a better future!