People nowadays are usually concerned about the corrosion resistance of pressure regulating springs when choosing them, because this not only ensures the service life of the spring, but also ensures its safety. However, many people do not know that when choosing a spring with corrosion resistance, it is necessary to identify its constituent materials, and most springs on the market are made of stainless steel. Is this related to its corrosion resistance? The following article will provide you with a detailed introduction.

All metals react with oxygen in the atmosphere to form oxide films on their surfaces. Unfortunately, the iron oxide formed on ordinary carbon steel continues to oxidize, causing corrosion to expand and forming pores. Painting or oxidation resistant metals can be used for electroplating to ensure the surface of carbon steel, but as is well known, this protection is only a thin film. The corrosion resistance of stainless steel depends on chromium, but because chromium is a component of steel, the protection methods are not the same.

Let's first take a look at the development history of stainless steel. Since the invention of stainless steel at the beginning of this century, stainless steel has made its competitors envious of its image as a modern material and its outstanding reputation in building applications. Stainless steel does not produce corrosion, pitting, rusting, or wear. Stainless steel is still a relatively high-strength material among building metal materials. Due to its excellent corrosion resistance, stainless steel can permanently maintain the integrity of structural components in engineering design. Chromium containing stainless steel also combines mechanical strength and high ductility, making it easy to manufacture components and meet the needs of architects and structural designers.
When the addition of chromium reaches 10.5%, the atmospheric corrosion resistance of the steel significantly increases, but at higher chromium content, although the corrosion resistance can still be improved, it is not significant. The reason is that when chromium is used to alloy steel, the type of surface oxide is changed to a surface oxide similar to that formed on pure chromium metal. This tightly adhered chromium rich oxide protects the surface and prevents further oxidation. This type of oxide layer is extremely thin, through which the natural luster of the steel surface can be seen, giving stainless steel a unique surface. Moreover, if the surface is damaged, the exposed steel surface will react with the atmosphere for self repair, forming a new "passivation film" that continues to provide protection.
The corrosion resistance phenomenon of pressure regulating springs has been introduced by the manufacturers of pressure regulating springs. Through the introduction of the article, have you gained a new understanding of springs? If you encounter any other difficult problems while using our springs, you can call our service hotline at any time, and our staff will promptly solve them for you.