Why should I use to buy stainless steel tube 304: This is the general idea of ??consumers. In a stainless steel tube manufacturing industry for over 10 years, Shandong Jinding Industry Co., Ltd WAN Yong, general manager, said, "There are a considerable number of consumers do not understand the relevant knowledge of stainless steel pipe, and believe that as long as stainless steel, no matter what the environment in, no matter what material is stainless steel, will not rust, used up almost all, it is not. " Million total, said stainless steel and acid-resistant stainless steel is referred or referred to, it is in the air and fresh water or chemical corrosion medium capable of withstanding a high-alloy steel. Each stainless steel must contain a certain amount of chromium. To date, no chromium-free steel. Chromium stainless steel performance have become key elements decided, the fundamental reason is added to the steel more than 12% of chromium as an alloying element in the future, the steel surface automatically form a very thin colorless, transparent and very smooth layer of chromium-rich The oxide film (ie passivation film) to form this layer of film greatly alleviate the oxidation of the steel. At the same time, stainless steel anti-rust and anti-corrosion properties of strength, depending on the metal material component "Nickel" the level of content, the higher the "Nickel" content, anti-rust and corrosion resistance of stainless steel is stronger, weaker and vice versa. The main role of nickel in stainless steel is that it changes the crystal structure of the steel, the formation of austenite crystal structure, thereby improving and strengthening the mechanism of chromium passivation, among its improved resistance to intergranular corrosion, but as workability, weldability and to improve the mechanical properties such as toughness. Depending on the content of the different components of a variety of metal materials, especially the "Nickel" content of different grades of stainless steel into a variety of common are: 304,301,202,201 and so on. Where 304 "Nickel" was the highest, according to the national standard of not less than 8%. Gradually reduce the other grades, "Nickel" content such as 201, less than 1%, due to Nickel is rare, the price is very expensive, so the price is more than 304 201 expensive is not surprising. Shandong Stainless Steel Pipe Co., Ltd. is a professional stainless steel pipe manufacturing enterprises, the company's efficient production and quality of product quality to win the majority of user acceptance. We warmly welcome friends to visit my company guidance, sincere cooperation! 

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