Stainless steel professional terms described layman's terms, that is not easy to rust stainless steel, in fact part of the stainless steel, both of stainless steel, but also acid resistance (corrosion resistance). Stainless steel and corrosion resistance of stainless steel is due to its chromium-rich oxide film on the surface (passivation film) formation. This stainless steel and corrosion resistance is relative. Tests showed that the steel in the atmosphere, water and other weak medium and nitric acid oxidizing medium, the corrosion resistance of steel with chromium added water content and improve, when the chromium content reaches a certain percentage, the occurrence of corrosion resistance of steel mutation, namely rust from easy to rust, never corrosion to corrosion. Many classification of stainless steel. Classification by structure organized at room temperature, there are martensitic, austenitic, ferritic and duplex stainless steel; by major chemical composition, can basically be divided into chromium stainless steel and chrome-nickel stainless steel two systems; BY PURPOSE there are nitric acid-resistant stainless steel, acid-resistant stainless steel, water-resistant stainless steel, etc., can be divided into types by corrosion pitting corrosion of stainless steel, stress corrosion of stainless steel, resistance to intergranular corrosion of stainless steel; classification according to features can be divided into no magnetic stainless steel, free cutting steel, cold steel, high strength stainless steel and so on. Because stainless steel has excellent corrosion resistance, formability, compatibility and a wide temperature range of strength and toughness, and other characteristics, so get was widely used in heavy industry, light industry, household goods industry and building decoration industry . Austenitic stainless steel has austenitic stainless steel at room temperature. Cr steel containing approximately 18%, Ni 8% ~ 10%, while C about 0.1%, with a stable austenite. Austenitic chromium-nickel stainless steel including the famous steel and 18Cr-8Ni increase on the basis of Cr, Ni content and adding Mo, Cu, Si, Nb, Ti and other elements developed series of high Cr-Ni steel. Austenitic stainless steel non-magnetic and have high toughness and plastic, but lower strength, not through the phase change to make it strengthened only through processing should be strengthened. Such as adding S, Ca, Se, Te and other elements, the good and easy machinability. In addition to this type of steel corrosion resistance to oxidizing acid medium, but if it contains Mo, Cu and other elements are also resistant to the corrosive sulfuric acid, phosphoric acid and formic acid, acetic acid, urea and the like. Such steel when the carbon content of less than 0.03% or containing Ti, Ni, can significantly improve their resistance to intergranular corrosion between. High silicon austenitic stainless steel concentrated nitric acid is willing to have good corrosion resistance. Because of austenitic stainless steel with comprehensive and good overall performance, in all walks of life access to a wide range of applications. Ferritic stainless steel in the state to use ferrite-based stainless steel. Chromium content of 11% to 30%, with a body-centered cubic crystal structure. Such steel is generally not contain nickel, it may also contain minor amounts of Mo, Ti, Nb until the element type of steel with a thermal coefficient of expansion coefficient, good oxidation resistance, excellent resistance to stress corrosion, are used for the manufacture Weathering , steam, water and oxidizing acid corrosion of components. The existence of such steel plastic poor ductility and corrosion resistance after welding and other shortcomings significantly reduced, thus limiting its application. Refining technology (AOD or VOD) applications enable carbon, nitrogen and other elements greatly reduce the gap, thus making this type of steel is widely used. Austenitic - ferritic duplex stainless steel is austenitic and ferritic stainless steel accounts for about half of each organization. In the case of containing a lower C, Cr content of 18% ~ 28%, Ni content of 3% to 10%. Some steel further contains Mo, Cu, Si, Nb, Ti, N and other alloying elements. Both austenitic class steel and ferritic stainless steel features, higher compared with the ferrite, ductility, toughness, not brittle at room temperature, resistance to intergranular corrosion and welding performance are significantly improved, while also maintaining a ferritic stainless steel 475 ℃ brittle and high thermal conductivity, with superplastic characteristics. Compared with the austenitic stainless steel, high strength and resistance to intergranular corrosion and chloride stress corrosion has significantly improved. Duplex stainless steel has excellent resistance to pitting corrosion, but also a section of nickel stainless steel. Martensitic stainless steel heat treatment can be adjusted by the mechanical properties of stainless steel, layman's terms, it is a class of hardened stainless steel. Typical grades for Cr13 type, such as 2Cr13, 3Cr13, 4Cr13 and so on. After quenching, high hardness, tempering temperature with different combinations of strength and toughness, mainly used for steam turbine blades, cutlery, surgical instruments. According to differences in chemical composition, it can be divided into martensitic chromium martensitic stainless steels and martensitic chrome-nickel steel categories. Depending on the organization and strengthening mechanism, it can be divided into martensitic stainless steel, martensitic and semi-austenitic (or semi-martensitic) precipitation hardening stainless steel and maraging stainless steel. Foshan Rong Xingyuan Stainless Steel Co., Ltd. specializes in the production: stainless steel welded pipe, stainless steel products, steel, 304 stainless steel pipe, 304 stainless steel pipe products. A: Specifications (special specifications can be customized): 1. stainless steel pipe: φ3.0-φ273mm Thickness: 0.3 ~ 6.0mm; 2. stainless steel tube: 3 * 3-200 * 200 mm Thickness: 0.3 ~ 6.0mm; 3. Stainless steel rectangular tube: 4 * 6-125 * 200 mm Thickness: 0.3 ~ 6.0mm; 4. Stainless steel oval tube: 6 * 10-155 * 270mm thickness: 0.3-5.0mm; 5. Stainless steel flat oval tube: 4 * 18-63 * 172mm thickness: 0.3-5.0mm II: wall thickness. Standard thickness: 0.5-5.0mm solid thick: 0.3-4.6mm food sanitary stainless steel tube stainless steel pipe for fluid transport Mechanical Construction / decorative stainless steel pipe industrial piping stainless steel pipe heat exchanger with stainless steel pipe with a pipe auto parts automobile exhaust thin-walled stainless steel tube stainless steel water pipe Hardware Furniture / Bathroom / products stainless steel tube three:! Material: 304,316,316L, 201,202,409,430, etc., are available upon SUS304, SUS316 material report NOTE: The above is our brief information stainless steel pipe, if you want to know the Division of stainless steel prices, specifications, models, etc., please call us, order.