The relationship between the performance of stainless steel cold-formed Section steel and carbon content

The so-called heat resistance of stainless steel cold-formed steel refers to that it can still maintain a relatively good physical and mechanical performance under high temperature. Of course,Section steel it has been proved by experiments that its performance will be affected by carbon. For carbon in our austenitic stainless steel, Section steel it will be strong and stable. The ability of carbon to form austenite is about 30 times that of nickel, so carbon itself is an interstitial element,Section steel and it can significantly increase the strength of an austenitic stainless steel itself through solid solution strengthening. Because the carbon in stainless steel cold-formed steel can directly improve the stress resistance of austenitic stainless steel in our high-concentration chloride and its corrosion resistance.

Therefore, for austenitic stainless steel cold-formed steel,Section steel carbon is regarded as a series of harmful elements, because under some conditions in the corrosion resistance of stainless steel,Section steel such as welding or heating at 450~850℃, carbon It can directly form a Cr23C6 type carbon compound with high chromium with chromium in steel. In this way, it will lead to local chromium depletion,Section steel and the corrosion resistance of steel will decrease.

The harmful effects of carbon will not only be controlled as low as possible during the smelting of austenitic stainless steel cold-formed steel, and the stainless steel cold-formed steel can be prevented in the subsequent heat,Section steel cold working and heat treatment processes. The surface of the stainless steel is carburized,Section steel so as to avoid the precipitation of chromium carbides.