15mnni steel plate is a low-alloy high-strength steel plate, which is mainly used in the manufacture of pressure vessels and boilers. It has excellent mechanical properties and corrosion resistance, so it is widely used in chemical, oil, natural gas, shipbuilding, nuclear energy and other fields.
The chemical composition of 15mnni steel plate mainly includes: carbon (c) content in the range of 012-0.18. The silicon (Si) content range is 015-0.35, manganese (mn) content range of 100-1.50, nickel (Ni) content ranges from 040-0.80％。In addition, the steel plate contains trace amounts of phosphorus (P) and sulfur (S), as well as small amounts of chromium (Cr) and copper (Cu). The reasonable ratio of these elements makes 15mnni steel plate have good weldability and plasticity.
15mnni steel plate has high strength and toughnessWugang Xinze SteelIts yield strength is 390MPa,Li TangThe tensile strength is 580-760MPa,The elongation is 22,The impact toughness (-60) is 34j. These excellent mechanical properties allow 15mnni steel plates to withstand working conditions under high pressure and high temperaturesThe safe operation of pressure vessels and boilers is ensured.
In addition, 15mnni steel plate also has good corrosion resistance. It is resistant to hydrogen-induced brittleness and stress corrosion cracking and can be used for long periods of time under harsh environmental conditions. This makes 15mnni steel plate an ideal material choice for manufacturing critical equipment such as chemical equipment, oil storage tanks, nuclear reactor vessels, and more.
In order to ensure the quality of 15mnni steel plate, the furnace temperature and rolling temperature need to be strictly controlled during the manufacturing process to ensure the uniformity and purity of the steel plate. The surface of the steel plate should be derusted and cleaned to improve the adhesion and corrosion resistance of the coating. During use, 15mnni steel plates need to be inspected and maintained regularly to ensure their performance and safety.
In conclusion, 15mnni steel plate is a low-alloy high-strength steel plate with excellent mechanical properties and corrosion resistance. It is widely used in the manufacture of pressure vessels and boilers, which can withstand the working conditions of high pressure and high temperature environments to ensure the safe operation of equipment. With the development of industrialization, the demand for 15mnni steel plate in the fields of chemical industry, petroleum, natural gas, shipbuilding, nuclear energy and other fields will continue to increase.