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Factors Affecting Rust of Stainless Steel Pipe Elbow

Date:2018-12-17    View:789      Tag:Factors Affecting Rust of Stainless Steel Pipe Elbow


Stainless steel pipe elbow has excellent corrosion resistance, stainless steel surface thin and strong oxide film so that all stainless steel in all water quality has excellent corrosion resistance, even buried also has excellent corrosion resistance. So it is suitable for a variety of water quality, in addition to disinfection and sterilization, do not need to control the water quality, at the same time, there is no corrosion and excessive exudate, to maintain clean water quality, to prevent secondary pollution, can withstand up to 30 meters per second The impact of high water flow. 


Many people think that stainless steel material is of course not rusty steel, it is true. Stainless steel pipe elbow rust mechanism is the formation of dense alloy oxide film, isolated oxygen contact to prevent the continuation of oxidation. So stainless steel is not "stainless". Stainless steel has the ability to resist atmospheric oxidation --- that is, stainless steel, but also in the acid, alkali, salt medium is the ability to corrosion - that is, corrosion resistance. Following the Prime Steel pipe to understand the impact of stainless steel under the main factors of rust it. 


1. The content of alloying elements. In general, the content of chromium in 10.5% steel is not easy to rust. The higher the content of chromium and nickel, the better the corrosion resistance, such as 304 material nickel content of 8-10%, chromium content of 18-20%, such a 304 stainless steel angle in general is not rusty . 


2. The manufacturing enterprises of the smelting process will also affect the corrosion resistance of stainless steel. Smelting technology is good, advanced equipment, advanced technology of large 304 stainless steel angle steel plant Whether in the control of alloying elements, impurities removal, billet cooling temperature control can be guaranteed, so the product quality is stable and reliable, inherent quality is good, rust. On the contrary, some small steel plant equipment behind, backward technology, smelting process, impurities can not be removed, the production of products will inevitably rust. 


 4. The external environment, the climate is dry and ventilated environment is not easy to rust. And the air humidity, continuous rainy weather, or air containing high degree of acidification of the environment is easy to rust. 304 stainless steel angle steel stainless steel, if the surrounding environment is too bad will be rusty. 


     In addition, the stainless steel pipe elbow has a rust point, indicating that the elbow is not purely stainless steel material is made, is the type of stainless steel elbow. Rust point can be polished with ultra-fine sandpaper bright colorless paint to do after the anti-rust treatment can be used. If you do not deal with rust point, these rust points will gradually expand, affect the appearance and will shorten the elbow life. 

1. The use of environmental chloride ions. Chloride is widely present, such as salt, sweat, sea water, sea breeze, soil and so on. Stainless steel in the presence of chloride ions in the environment, corrosion quickly, even more than ordinary low carbon steel. So the use of stainless steel elbow pipe fittings are required, but also need to always wipe, remove the dust, keep clean and dry. 

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