The stainless steel BA pipe is called the bright annealing pipe. Its characteristic is that the inner surface is smooth and shiny, with a certain degree of glossiness, extremely low roughness, and good weldability. The stainless steel BA pipe is mainly used for the transportation of some special gases and fluid media. In fact, it is also the base material of EP pipes. 

Currently, stainless steel BA pipes are mainly used for pipeline transportation in clean workshop buildings, in the fields of biopharmaceuticals, clean laboratories, high-purity gases, liquid crystal display, etc. For gases with high purity requirements, clean rooms and clean equipment.

BA level stainless steel pipe:

1. Diameter control: tolerance ±0.05mm (0.1%); 

2. Length control: Tolerance ±3mm; 

3. Straightness: Less than 0.1mm/m; 

4. Surface roughness: Ra ≤ 0.8 μm 

5. Cleaning: Ultrasonic cleaning; 

6. Inspection: Non-destructive testing methods such as radiographic testing, ultrasonic testing, and water pressure testing, etc.