Jiaxing bearings: stainless steel bearing why will rust

Jiaxing bearing group sales co. , LTD. , is the spot sales center of jiaxing bearing factory, specializing in HRB bearings, application in production design and related machinery has a wealth of technical experience, today we are together and we learn why stainless steel bearings will rust. Why will rust stainless steel bearing: 'rust' the essence of which is corrosion or rust, is due to the steel surface and the oxygen from the atmosphere, water and acid, alkali, salt and other substances caused by chemical or electrochemical the role of color known as rust or corrosion. The material of the surface is' rust 'is iron oxide. Why is not easy to rust, stainless steel and its join 12 within the matrix. More than 5% of chromium. In oxidizing corrupt corrosion medium, chromium can make quickly generate a dense layer of steel surface passivation membrane, prevent the metal substrate was damaged. When the content of chromium in 12. More than 5%, forming a dense layer of the stability of the passivation film, rust resistance leap consolidation, greatly enhance the corrosion resistance ability, this is why the chromium content in stainless steel to more than 12%. Stainless steel as its name implies is stainless steel, here 'stainless is relative, not absolute is relative to the carbon steel. Stainless steel is not easy to rust, but not absolutely not rusting, just in the same condition and environment, the carbon steel is not easy to corrosion and rust. Chromium stainless steel in the join at the same time, to add to put the right amount of alloy elements such as Ni, Mo, V, rust resistance stronger. So on the rust resistance, austenite size stainless steel than martensite stainless steel is strong. Second level is the corrosion resistance of stainless steel with carbon and chromium content, surface treatment status. Stainless steel with the increase of carbon content, antirust performance degradation, 3 cr13 rust resistance is less than 2 cr13. With the improvement of content in steel, anti-rust performance increase. Surface treatment and state influence rust resistance at the same time. Knife cut the surface plating chromium, electrolytic polishing, mirror polishing, manual polishing abrasive belt, rust resistance decreasing. To be rust stainless steel knife cut, mainly is to don't damage the stainless steel knife cut surface passivation membrane. With good as soon as possible after clean. Dry can. Try not to contact with acid, alkali salt. If you are interested in the above bearing factory introduction of jiaxing jiaxing bearing or have any questions, please click on contact us page on the right side of the online customer service, or call: 4006578186, jiaxing bearing retail center you full thoughtful procurement consultant. - - - - - - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, Retail sales center) Reprint please indicate the source