Bright Annealed Pipe

BA pipe is the abbreviation for Bright Annealed Pipe. It is a type of metal pipe, typically made of stainless steel. This type of pipe undergoes special bright annealing treatment, which is a heat treatment process. During the annealing process, the pipe is heated to an appropriate temperature in a protective atmosphere (such as hydrogen or vacuum environment) and then slowly cooled.

This treatment method maintains a bright appearance on the surface of the pipe, like a mirror with high glossiness, which is why it is called a "bright annealed pipe". For example, in some high-end instrument and equipment connections, the bright surface of the BA tube can enhance the overall aesthetics.

Material characteristics

physical characteristics

High dimensional accuracy: The outer and inner diameter dimensions of the BA tube are controlled very precisely, with a very small tolerance range. This enables it to achieve tight fit during pipeline connection and assembly processes, such as in precision chemical fluid transportation systems, where precise dimensions ensure good sealing between different pipelines and between pipelines and fittings, reducing the risk of leakage.

High surface quality: It has extremely low surface roughness, which makes it less resistant to fluid transport. At the same time, high gloss surfaces are not easily contaminated with dust and impurities, making them very suitable for environments that require high cleanliness, such as gas delivery pipelines in cleanrooms.

chemical properties 

Strong corrosion resistance: BA pipes have good corrosion resistance to various chemicals. The stainless steel material itself has a certain degree of corrosion resistance, and coupled with the protective film formed on the surface of the pipe during the bright annealing process, it can effectively resist the corrosion of chemical substances such as acid, alkali, and salt. In pipeline systems in fields such as chemical and marine engineering, this corrosion resistance can ensure the service life and safety of pipelines.