Bright Annealing is an annealing process in which stainless steel pipes are annealed in a protective atmosphere or vacuum to prevent oxidation and maintain a bright surface. Thepurpose and requirements of the bright annealing process for stainless steel are as follows: to eliminate work hardeningand obtain satisfactory metallographic structure. The brightannealing furnace is mainly used for the heat treatment ofstainless steel products in a protective atmosphere. When theperformance requirements are different, the requirements forthe metallographic structure after bright annealing are also different, and the process of bright heat treatment is also different.

Senmai Clean Stainless Steel BA Pipe is made by introducing high- precision alloy molds from abroad through cold rolling and precision drawing processes, with an accuracy of less than 0.05mm. Cooperatewith the company's self-developed swing type high-temperature cleaning cycle filtration and recycling technology to replace traditional chemical cleaning and ultrasonic cleaning. This technology greatlyreduces the impact on the environment while improving the surface's ultra cleanliness without leaving oil stains. Through advanced heattreatment and reduction equipment from abroad, it undergoesbright solid solution (annealing) treatment under ambient protection,resulting in a bright surface with inner pipe wall roughness of s 0.2 um, good corrosion resistance, high dimensional accuracy, and goodprocessing performance. It is the preferred material for EP main pipes and can also be directly applied in industries such as electronics,nuclear power, food, medicine, chemical, petroleum, shipbuilding,etc.