A105 steel bars are widely used in high temperature, high pressure and corrosive environments. This is because A105 has excellent mechanical properties and corrosion resistance. It has high strength and strength, can withstand high pressure and high temperature, and has good performance. In addition, A105 also has good processability and welding performance, making it easy to manufacture and repair. A105 can be used in chemical, petroleum, food and other industries. During the manufacturing process, A105 typically requires forging and heat treatment. Forging can change the internal structure of a metal and improve its mechanical properties. Heat treatment can change the surface structure and hardness of the metal, further improving its mechanical properties and corrosion resistance.