What aspects can automotive sheet metal parts be divided into according to organizational structure?

2023-11-21 08:59:52

Stainless steel automotive sheet metal parts are generally the general term for stainless steel sheet metal parts and acid-resistant steel. Stainless steel sheet metal parts refer to steel that is resistant to corrosion by weak media such as atmosphere, steam, and water, while acid-resistant steel refers to steel that is resistant to corrosion by chemically corrosive media such as acids, alkali, and salts. Stainless steel sheet metal parts have been around since the beginning of this century and have a history of more than 90 years.

The invention of stainless steel sheet metal parts is a major achievement in the history of world metallurgy. The development of stainless steel sheet metal parts has laid an important material and technical foundation for the development of modern industry and scientific and technological progress. There are many types of stainless steel sheet metal parts with different properties. It has gradually formed several major categories in the development process.

According to the organizational structure, it is divided into martensitic stainless steel sheet metal parts (including precipitation hardened stainless steel sheet metal parts), ferritic stainless steel sheet metal parts, austenitic stainless steel sheet metal parts and austenite plus ferrite duplex stainless steel sheet parts. Four major categories: metal parts; classified according to the main chemical components in steel or some characteristic elements in steel, they are divided into chromium stainless steel sheet metal parts, chromium-nickel stainless steel sheet metal parts, chromium-nickel-molybdenum stainless steel sheet metal parts and low-carbon stainless steel Sheet metal parts, high-molybdenum stainless steel sheet metal parts, high-purity stainless steel sheet metal parts, etc.; according to the performance characteristics and uses of steel, they are divided into nitric acid-resistant stainless steel sheet metal parts, stainless steel sheet metal parts, and pitting corrosion-resistant stainless steel sheet metal parts. , stress corrosion resistant stainless steel sheet metal parts, high strength stainless steel sheet metal parts, etc.

According to the functional characteristics of steel, it is divided into low-temperature stainless steel sheet metal parts, non-magnetic stainless steel sheet metal parts, easy-cut stainless steel sheet metal parts, superplastic stainless steel sheet metal parts, etc. The currently commonly used classification methods are based on the structural characteristics of steel, the chemical composition characteristics of steel, and a combination of the two. Generally divided into martensitic stainless steel sheet metal parts, ferritic stainless steel sheet metal parts, austenitic stainless steel sheet metal parts, duplex stainless steel sheet metal parts and precipitation hardened stainless steel sheet metal parts, or divided into chromium stainless steel sheet metal parts. There are two categories: parts and nickel stainless steel sheet metal parts.