Heat-treated medium thick plate is a type of plate that has undergone precise heat treatment processes to improve its mechanical and physical properties. The heat treatment process includes heating, holding, and cooling, all of which are aimed at altering the microstructure of the steel to enhance its strength, toughness, hardness, and wear resistance. 304 stainless steel heat-treated medium thick plate is a type of stainless steel plate whose performance has been optimized through heat treatment processes. 304 stainless steel heat-treated medium thick plate is a stainless steel product with outstanding comprehensive properties. The chemical composition of this material mainly includes about 18% chromium and 8% nickel, along with a lower carbon content. The high content of chromium endows 304 stainless steel with excellent corrosion resistance, forming a stable passive layer in various environments to effectively resist chemical erosion. The addition of nickel enhances its overall structural stability, improves corrosion resistance, and provides good ductility and toughness. Heat treatment processes, especially annealing, can optimize the lattice structure of 304 stainless steel, increase its hardness and strength, while maintaining good machinability. This treatment process also helps to eliminate processing stress, improving performance in welding and forming processes.