N08367 chemical element composition content (%)
N08367 is a high-temperature corrosion-resistant stainless steel that belongs to austenitic steel. It is more resistant to corrosion than ordinary stainless steel and is able to be used at high temperatures for long periods of time without losing its properties.
Material structure and properties
N08367 has a high percentage of nickel and chromium in its chemical composition, as well as some molybdenum and copper. The nickel content ensures that the steel does not lose its toughness at high temperatures, while the chromium content ensures its corrosion resistance. The addition of molybdenum and copper can improve the corrosion and oxidation resistance of steel.
The manufacturing process of N08367 generally adopts the smelting method, that is, various raw materials are mixed and heated according to a certain proportion, and then cast after smelting. This manufacturing method guarantees the uniformity and stability of the steel. In the manufacturing process, it is necessary to ensure the cleaning of slag and the removal of oxides, otherwise the quality of the steel will be affected.
The heat treatment of N08367 generally adopts two methods: solution annealing and quenching. Solution annealing can effectively eliminate residual stress and intergranular corrosion in steel, and improve the toughness and corrosion resistance of steel. Quenching can improve the hardness and strength of the steel, and is suitable for special use conditions.
Mechanical properties
The mechanical properties of N08367 are very good, its tensile strength can still be maintained at high temperatures above 100MPa, and the impact toughness is also relatively good. In terms of corrosion resistance, N08367 can be used for a long time in corrosive media such as chloride and nitric acid without loss.
Plates, round bars, forgings and seamless tubes
N08367 is produced in several forms, such as plates, round bars, forgings and seamless pipes. The thickness of the plate is generally more than 3mm, which is suitable for making shells and pipes of various high-temperature equipment. Round steel is suitable for making shaft parts, forgings are suitable for making parts that work under high strength and high temperature, and seamless pipes are suitable for making pipes.
Metallographic organization
The metallographic structure of N08367 generally presents clear grain boundaries, uniform crystals, and fine grains. Through the positive and reflective microscope, the crystal structure and grain boundary distribution inside the steel can be clearly seen. Through the observation of metallographic structure, it is possible to judge whether the quality and preparation process of the steel are reasonable.
Problems encountered in use
While using N08367, you may encounter some issues. For example, steel is prone to deformation and stress at high temperatures, so attention needs to be paid to strengthening support and fixation. In addition, steel will oxidize at high temperatures, so care needs to be taken to prevent the accumulation and cleaning of oxides. In addition, it is also necessary to pay attention to strengthening maintenance and maintenance in the process of use to ensure the long-term use effect of steel.
Cold-rolled, hot-rolled and cold-drawn
The processing methods of N08367 generally adopt cold rolling, hot rolling and cold drawing. Among them, cold rolling is suitable for making thin plates and strips, etc., which can ensure the surface quality and dimensional accuracy of steel. Hot rolling is suitable for making thick plates and large structural parts, etc., which can improve the plasticity and toughness of steel. Cold drawing is suitable for making filaments and tubes, etc., which can improve the surface finish and dimensional accuracy of steel.
Electroslag and electric furnaces
The melting method of N08367 generally adopts two methods: electric furnace and electroslag furnace. Among them, the electric furnace is to put metal materials into the electric furnace for smelting, which can improve the purity and uniformity of steel. The electroslag furnace puts the metal material into the slag pool for smelting, which can remove impurities and oxides, and improve the quality and stability of the steel.
Conclusion
N08367 is a high-temperature corrosion-resistant stainless steel with excellent mechanical properties and corrosion resistance. The preparation process, metallographic structure and processing method of steel can affect the quality and performance of steel. In the process of use, it is necessary to pay attention to strengthening maintenance and maintenance to ensure the long-term use effect of steel.