Stainless steel wire in production processes in magnetism it! People often think of stainless steel wire magnet adsorption verify its quality and authenticity, do not smoke no magnetism that is good, worthy of the name; absorption is magnetic, so considered counterfeit, fake. In fact, this is an extremely one-sided approach to distinguish fault. Real stainless steel wire will "rust" would with magnetic stainless steel wire is beyond 60% of the iron matrix, participate network, nickel, molybdenum and other alloying elements of high-alloy steel, its biggest feature is resistant to strong, but not definitely not rust stainless steel wire. In coastal areas, or some serious local air pollution, when chloride ion content of the air is large stainless steel, stainless steel exposed to the atmosphere line appearance can have some rust, but rust is limited to appearance, not erode stainless steel inner wire substrate. Many varieties of stainless steel wire, most with a magnetic, therefore, is not to identify the science magnet adsorption way stainless steel lines. Variety of stainless steel wire complicated arrangement at room temperature according to the layout can be categorized as follows: 1. austenitic: If 304,321,316,310, etc; 2. martensite or ferrite: as 430, 420, 410 etc; large deformation resistance of stainless steel wire, the pullout easily stick in the mold, resulting in surface scratches. In order to ensure the smooth progress of drawing the line stainless steel screws, wires must be properly surface treatment. Surface treatment includes removing the surface oxide content in the surface and the two coated with good adhesion of the lubricating coating. Multi-element alloy stainless steel wire stainless steel flexible wire, a complex surface oxide. First, it is necessary to introduce the common nature of stainless steel wire elements and their oxides: chromium and its oxides: chromium in alkali, nitrate, carbonate and organic solution is very stable, but soluble in hot concentrated hydrochloric acid and sulfuric acid. Chromium generation three oxides: CrO, Cr2O3, CrO3, CrO very unstable, Cr2O3 oxidation in air. Cr2O3 is a green insoluble substance, practically insoluble in acid solution. CrO3 is chromic anhydride, can be dissolved in sulfuric acid and nitric acid solution. Stainless steel wire hairpin, Shengyuan stainless steel, stainless steel provided by the Dongguan City Shengyuan Stainless. Shengyuan Stainless Steel Co., Ltd. of Dongguan City (dg-shengyuan.cn) is Dongguan, metal packaging machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shengyuan leader in stainless steel with the staff warmly welcome all inquiries negotiations to create a better future Shengyuan stainless steel.