The application fields of stainless steel medium and thick plates are very wide, and can be used to make various containers, furnace shells, furnace plates, bridge and automobile static steel plates, low alloy steel plates, bridge steel plates, general steel plates, boiler steel plates, pressure vessels Steel plate, checkered steel plate, automobile frame steel plate.
Let's talk about the characteristics of stainless steel medium and thick plates. The materials used for the board are different, and the characteristics are also different.
If the
stainless steel plate is made of austenitic stainless steel, its corrosion resistance is relatively good, and its comprehensive mechanical properties and process properties are relatively good, but the strength and hardness of the plate are relatively low. Ferritic stainless steel medium and thick plates have higher strength, but low cold work hardening tendency, excellent local corrosion resistance such as chloride stress corrosion, pitting corrosion, crevice corrosion, etc., but are more sensitive to intergranular corrosion, and have poor low temperature toughness .
Ferritic stainless steel plate contains 11%-30% chromium element, basically no nickel element, belongs to nickel-saving steel type, and its structure is mainly ferrite structure in use state. The strength of ferritic stainless steel medium and thick plates is relatively high, while the tendency of cold work hardening is relatively low. It can resist chloride stress corrosion, pitting corrosion, crevice corrosion and other local corrosion very well, but it is more sensitive to intergranular corrosion. The low temperature toughness is also relatively poor.
Duplex stainless steel plate has the advantages of both austenitic stainless steel and ferritic stainless steel. Martensitic stainless steel plate is a kind of stainless steel whose material properties can be optimized through heat treatment process, and the corresponding stainless steel plate has higher strength and hardness properties. Precipitation-hardening stainless steel medium and thick plates are stainless steels that precipitate carbides in stainless steel by heat treatment to achieve the purpose of improving strength, so the corresponding stainless steel medium and thick plates have very good strength.
