Kunshan spring factory: corrosion resistance of stainless steel spring analysis

304 is a stainless steel plate whose main use is universal, and it is commonly used for the production and manufacture of mechanical equipment and components with excellent comprehensive performance (corrosion resistance and formability).

It specifically exhibits significant cold work hardening at the time of deformation and is used in a wide variety of places. In essence, 302 stainless steel plate is a combination of 304 stainless steel plate with a higher carbon content, based on the cold rolled to obtain a higher compressive strength.

302B is a high silica stainless steel sheet with high resistance to hot air oxidation. 303 and 303SE are each easy-to-cut stainless steel sheets with sulfur and selenium. They are critical for applications where laser cutting and high gloss are required.

Under these standards, 303Se stainless steel plate is also used to produce parts that require hot upsetting because of its excellent heat treatment properties.

30L is a variation of 304 stainless steel spring with low carbon content. Used for electric welding welding place. Die spring set of lower carbon content so that the total number of dissolved carburite in the heat damage zone around the weld, the dissolution of carburite may lead to stainless steel springs in a number of natural environments of stress corrosion (electro-welding welding impregnation).

For stainless steel springs, shrinkage exceeds the value, not long after the application of popping yellow, it does not have the amount of shrinkage, and even no ductility, we have encountered in our daily lives, this is due to the application of shrinkage exceeds the larger shrinkage, if the popping yellow cracking work pressure is too large, then in the application of the general frequency of the rupture is not prone to occur. If the application frequency of the bullet yellow is too much, used in the bullet yellow can not afford to work pressure category.

In other words there are people in the application of popping yellow in the whole process, because the popping yellow left and right vibration caused by the gap, resulting in popping yellow deformation, if there is a pre-tensioning force, the application of mold spring size is relatively stable. Stainless steel springs are generally not vertical, which will cause the spring yellow guide pin and spring yellow damage, and even make the precision spring yellow rupture.