Stainless steel elbow classification and application: Connect two pipes with the same nominal diameter to make the pipeline work90Degree turn.

　　1.Classified by material, carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon chromium asphaltppcSuch as.

　　2.It can be classified by manufacturing methods into pushing, pressing, forging, casting, etc.

　　3.According to manufacturing standards, they can be classified into national standards, electrical standards, water standards, American standards, German standards, Japanese standards, Russian standards, etc.Stainless steel is still one of the metal materials with high strength used in construction.Due to the corrosion resistance of stainless steel, it can enable structural components to maintain the integrity of engineering design.Chromium-containing stainless steel also combines mechanical strength and high ductility, making it easy to process and manufacture components, and can meet the needs of architects and structural designers.All metals react with oxygen in the atmosphere to form an oxide film on their surfaces.Unfortunately, the iron oxide formed on ordinary carbon steel continues to oxidize, causing the rust to expand continuously and eventually form holes.The surface of carbon steel can be protected by using paint or electroplating with oxidation-resistant metals such as zinc, nickel and chromium. However, as is known to all, this protection is only a film.If the protective layer is damaged, the steel beneath will begin to rust

　　Steel resistant to corrosion by weak corrosive media such as air, steam and water, as well as chemical corrosive media such as acids, alkalis and salts.Also known as stainless acid-resistant steel.In practical applications, steel resistant to weak corrosive media corrosion is often referred to as stainless steel, while steel resistant to chemical media corrosion is called acid-resistant steel.Due to the difference in chemical composition between the two, the former is not resistant to chemical medium corrosion, while the latter generally has non-rusting properties.The corrosion resistance of stainless steel depends on the alloying elements contained in the steel.Chromium is the fundamental element that endows stainless steel with corrosion resistance. When the chromium content in steel reaches1.2％When left and right, chromium reacts with oxygen in the corrosive medium to form a very thin oxide film on the steel surface. Self-passivation film,It can prevent the base material of steel from further corrosion.In addition to chromium, commonly used alloying elements also include nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements for the microstructure and properties of stainless steel in various applications.

　　Stainless steel elbows do not cause corrosion, pitting, rust or wear. In pipeline systems, stainless steel elbows are pipe fittings used to change the direction of pipelines.By Angle, there is45°and90°180°Three commonly used ones, and in addition, according to the engineering requirements, they also include60°Other non-standard Angle elbows, etc.The materials of elbows include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics, etc.The connection methods with pipes include: direct welding (the most commonly used method), flange connection, threaded connection and socket connection, etc.According to the production process, they can be classified as: welded elbows, pressed elbows, cast elbows, etc.A commonly used pipe fitting in pipeline installation, it is used for connecting at the bends of pipelines.Other names:90Elbow, right-angle bend, love bend, etc.

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