Stainless steel bolts are widely used in daily life, but many people have a misunderstanding about stainless steel bolts, they think that stainless steel bolts rust may be a problem with the material. In fact, stainless steel does not rust, just not easy to rust. In some environments, stainless steel bolts will rust. The following is a brief introduction to the reasons.
Stainless steel is the steel that resists the corrosion of gases, steam, water, weak corrosive substances and acids, alkalis, salts and other chemical leaching substances. In the surface of stainless steel has a very thin, firm and delicate and relatively stable chromium-rich oxide film, stainless steel often rust-proof treatment, all rely on this layer of oxide film to block the penetration of oxygen molecules to the occurrence of oxidation reactions and cause rust. When the oxide film is damaged, it is easy to rust.
Why do stainless steel bolts also rust?
1. stainless steel bolts are located in the natural environment of wet and cold, in the case of water and oxygen, resulting in organic matter and thus corrosive destruction of the stainless steel surface.
2.stainless steel bolts in the installation of the installation tools suffered machine destruction and thus damage to the surface protective film. For example, in the outside curtain wall construction assembly stainless steel bolts, wrenches on the head of stainless steel bolts in contact with the place leading to mechanical damage points, cleaned by precipitation, stainless steel bolt head will have a slight rust.
3.stainless steel bolt surface contact with acids, alkalis, salts and other chemical substances susceptible to chemical changes corrosion. For example, coastal areas of the building curtain wall connection standards are generally purchased 316 stainless steel bolts (more corrosion-resistant than 304 stainless steel bolts), due to the high salt content in the air in coastal areas easy to stainless steel lead to corrosion.
4. stainless steel bolts with dust impurities or metal particles on the surface, in the wet and cold gas is easy and stainless steel electrochemical corrosion, accelerate the corrosion of stainless steel.
Therefore, if you want to keep the stainless steel bolts bright and not corroded, the purchase of the appropriate material stainless steel bolts is very necessary. Aozhan Hardware Fastener Co., Ltd. of stainless steel bolts, material in line with the normative standards of 304, in the laboratory salt water spray test 304 material to ensure that more than 48 hours. At the same time in the use of stainless steel bolts will be cleaned and maintained to remove surface impurities to avoid reactions and corrosion. Procurement of stainless steel bolt products to us, we will serve you wholeheartedly, and look forward to working with you. Welcome to send e-mail inquiries: info@aozhanfasteners.com.
Post time: Oct-22-2022
