304 is a kind of universal stainless steel plate, widely used in the production and manufacture of comprehensive energy (corrosion resistance and formability) excellent mechanical equipment and components.

In the deformation of concrete shows obvious cold hardening, and used in a variety of places. In essence, 302 stainless steel plate is a combination of 304 stainless steel plate, has a higher carbon composition, according to cold binding can obtain higher compressive strength.

302B is a high silicon stainless steel plate with high heat resistance to air oxidation. 303 and 303SE are easy to cut stainless steel plates with sulfur and selenium respectively. They are essential for places requiring arbitrary laser cutting and high gloss.

Under these standards, 303Se stainless steel plates are also used to manufacture parts requiring hot upsetting because of their excellent heat treatment properties.

30L is a variation of 304 stainless steel spring, low carbon content. Used in electric welding places. The lower carbon content of the die spring sleeve causes the total number of cementite dissolved in the thermal damage zone around the welding. The dissolution of cementite may lead to the stress corrosion of the stainless steel spring in some natural environments (electric welding etching).

For stainless steel spring, the reduction exceeds the value, not long after the application of the yellow, it does not reduce the amount, and even no malleability, we have encountered in daily life, this is because the application of the reduction exceeds the larger reduction, if the elastic yellow crack working pressure is too large, then in the application of the general frequency is not easy to crack. If the application frequency of elastic yellow is too much, it can not bear the working pressure category when used in elastic yellow.

In other words, some people in the whole process of the application of elastic yellow, because the elastic yellow left and right vibration caused the gap, resulting in elastic yellow deformation, if there is a preload, the application of the mold spring size is relatively stable. Stainless steel springs are generally not vertical, which will cause damage to the yellow guide pin and yellow, and even break the yellow.