The raw materials of stainless steel elbow inventory mainly include steel castings, slabs, steel and other raw materials, and different raw materials have a key influence in the application. Steel is a raw material that is produced and processed into various shapes, specifications and properties necessary for steel castings, slabs or steel products according to working pressure. Due to the high viscosity of the stainless steel elbow material and poor breaking characteristics, it is very easy to cut and scratch the external thread of the product workpiece or the tap chip during the whole process of tapping the stainless steel elbow, which is harmful to production and processing. Efficiency and external thread quality. All metal materials react with CO2 in the air to produce an air oxide film on the surface. Tragically, the compounds produced on ordinary carbon steel are again air-oxidized, causing rusting to continue to develop, resulting in holes.






The surface of stainless steel elbows can be ensured by electroplating with paint or metal materials that are resistant to air oxidation (such as zinc, nickel and chromium), but, as everyone knows, this type of protection is only a plastic film. If the protective layer is destroyed, the steel underneath will just start to rust. If it is said that it is the production and processing of stainless steel pipe fittings, it is different, because this is the whole process of the metallurgical industry, which is from the inside to the outside. The secret of stainless steel pipe fittings stainless steel depends on the addition of metallic chromium to carbon steel, and the composition is not low. At around 12%, after he touches the gas, chromium will react with co2 and reflect on the surface of carbon steel. A high-density passivation film can be reasonably maintained for stainless steel pipe fittings. And this passivation film is very thin, and the natural gloss of the steel surface can be seen, which makes the stainless steel pipe fittings have very distinctive surface characteristics. However, it cannot be ensured that this protective film will not be damaged. Once the exposed steel is damaged, it will react with CO2, and a passivation film will be produced again, and he will take up his work again. In theory, stainless steel pipe fittings are not easy to corrode, but in fact, the level of rust caused by the different levels of wet areas in many natural environments is also normal.