Stainless steel pipe is a hollow long round steel, which is widely used in petroleum, chemical, medical, food, light industry, machinery and instrumentation and other industrial pipelines and mechanical structural parts. In addition, when the bending and torsion strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also often used as furniture and kitchen utensils. Introduction to stainless steel pipe manufacturers. Stainless steel belongs to metal materials. Stainless steel refers to steel that is resistant to weak corrosive media such as air, steam, and water, and chemically corrosive media such as acids, alkalis, and salts. It is also called stainless acid-resistant steel x0d. Actually In use, steel that is resistant to weak corrosive media is often called stainless steel, and steel that is resistant to chemical media is called acid-resistant steel. Due to the difference in chemical composition between the two, the former is not necessarily resistant to chemical media, while the latter is Generally have rust resistance. The corrosion resistance of stainless steel depends on the alloying element x0d contained in the steel. The basic alloying elements of stainless steel include nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., in order to meet the requirements of various uses for the arrangement and performance of stainless steel, stainless steel is easily corroded by chloride ions, because chromium, nickel, and chlorine are isotopic elements. Isotopic elements will exchange assimilation and then form the corrosion of stainless steel. The corrosion resistance of x0d chemical composition stainless steel decreases with the increase of carbon content. Therefore, most stainless steels have low carbon content, and the largest Over 1.2%, the Wc (carbon content) of some steels is even lower than 0.03% (such as 00Cr12). The primary alloying element in stainless steel is Cr (chromium). Only when the Cr content reaches a certain value, the steel has corrosion resistance. Therefore, the general Cr (chromium) content of stainless steel is at least 10.5%. Stainless steel also contains Ni, Ti, Mn, N, Nb, Mo, Si, Cu and other elements. Stainless steel is not prone to corrosion, pitting, rusting or abrasion. Stainless steel is still one of the highest strength materials in construction metal materials. Because stainless steel has outstanding corrosion resistance, it can make the layout components always maintain the integrity of the project plan. Chromium-containing stainless steel also integrates mechanical strength and high elongation, and is easy to process and manufacture parts, which can meet the needs of architects and layout planners. Three classification methods of stainless steel pipes of stainless steel pipe manufacturers and the use of stainless steel pipes Disposal according to use: decoration pipe, industrial pipe, food sanitation pipe, nuclear power pipe, etc.; according to appearance: round tube, square tube, special-shaped tube, capillary, etc.; according to composition: austenite, ferrite, double Phase steel, super double flat. According to different categories, the required raw materials are different. For example, if you can use 201 in local decorations, you don't need to use 316L. The price varies greatly, and the more stringent nuclear power, chemical, food and other occupations. Corrosion resistance and pressure resistance are required. If the composition is inappropriate, it will be dangerous.