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Stainless Steel Material Types And Information Jun 14, 2018

In layman's terms, stainless steel is steel that does not easily rust. In fact, a part of stainless steel has both stainless and acid resistance (corrosion resistance). Stainless steel's stainless and corrosion resistance is due to the formation of a chromium-rich oxide film (passivation film) on its surface. This stainless steel and corrosion resistance are relative. Tests have shown that the corrosion resistance of steel in weak media such as air and water and in oxidizing media such as nitric acid increases with the increase of chromium content in the steel. When the chromium content reaches a certain percentage, the corrosion resistance of steel undergoes abrupt changes. , that is, from rust to rust, from corrosion resistance to corrosion.

Type introduction;

Stainless steel materials: stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, product brands are: SUS310S, 309S, 316L, 316, 316Si, 317, 304, 304L, 309, 305, 314, 303, 321, 301 , 202, 201, etc.;

In many industrial applications, stainless steel provides satisfactory corrosion resistance. According to the experience of use, in addition to mechanical failure, the corrosion of stainless steel is mainly manifested in: a serious form of corrosion of stainless steel is local corrosion (ie, stress corrosion cracking, pitting corrosion, intergranular corrosion, corrosion fatigue, and crevice corrosion) . The failure caused by these localized corrosion accounts for almost half of the failure cases. In fact, many failures can be avoided through reasonable selection.