You need to know three things about antibacterial stainless steel !
At the moment of the epidemic, all kinds of anti-epidemic products have attracted everyone's attention. We will introduce to you about antibacterial stainless steel. We will introduce from the following three points:
1. The antibacterial effect of some stainless steels is because the surface of stainless steel can release metal Cu ions with sterilization function.
It mainly produces antibacterial effects through mechanisms such as electrostatic adsorption sterilization and metal elution sterilization. Antibacterial metal ions are adsorbed to the surface of negatively charged bacteria by Coulomb attraction, which damages the bacterial cell wall; the other is to penetrate the cell wall into the bacteria in one step, and react with the sulfur and nitrogen functional groups such as sulfur and amino groups. , Which denatures proteins and loses activity of cell synthase.
2. The history of using copper (Cu) ions for sterilization has been very long.
It has been more than two hundred years since Schulthees used copper sulfate to control wheat bunting in 1761. In 1885, the French Milharde successfully researched and developed a Cu ion-containing Bordeaux liquid with bactericidal function, which resolved the crisis of years of pests and diseases of French Bordeaux estate grapes. Subsequently, many varieties of Cu ion-containing fungicides appeared one after another, pioneering the application of Cu ion sterilization era. If you are interested in the principle of metal ion sterilization, here is more knowledge.
3. Next, let's introduce which types of stainless steel are suitable for making antibacterial stainless steel?
304 stainless steel: 18/8 stainless steel. Products such as: corrosion-resistant containers, tableware, furniture, railings, medical equipment. The standard composition is 18% chromium plus 8% nickel. It is a non-magnetic stainless steel whose metallographic structure cannot be changed by heat treatment. 304 stainless steel can also be used to make high-quality sinks.
304 stainless steel L: The same characteristics as 304 antibacterial stainless steel, low carbon so it is more corrosion resistant and easy to heat treatment, but the mechanical properties are poor.
316 stainless steel: After 304 antibacterial stainless steel, it is the second most widely used steel grade. It is mainly used in the food industry, watch jewelry, pharmaceutical industry and surgical equipment. The addition of molybdenum element makes it a special corrosion-resistant structure. Because it has better resistance to chloride corrosion than 304 stainless steel, it is also used as "marine steel". SS316 is usually used in nuclear fuel recovery devices.
316 stainless steel L: low carbon so it is more resistant to corrosion and easy to heat treatment, products such as: chemical processing equipment, nuclear power generators, refrigerant storage tanks.
Okay, thats it for today. If you want to learn more about stainless steel, welcome to visit steelltd.com. We are an excellent steel supplier in China with professional stainless steel knowledge. JM company provides a variety of stainless steel customization and sales services. The 304, 304L, 316, 316L stainless steel mentioned in the article are our best-selling products. If you have any needs or professional knowledge questions, please feel free to contact our customer service. advisory.