Stainless steel BA, 8K(8#) surface treatment

BA (Bright Annealing) cold-rolled stainless steel sheet has been brightly annealed and is a smooth surface. Due to different steel plant equipment, production control and inspection requirements, the market has different BA surface treatment effects. Even for products produced by the same manufacturer, at different times and on different shifts, the surface will have certain differences, such as surface brightness, surface roughness, etc. There is currently no specific standard for this, mainly depending on the manufacturer’s positioning and Acceptance of the market.

The same applies to the 8K (8#)mirror panel. Generally, it is polished on the basis of BA or 2B to make its surface brighter and look like a mirror, so it is called "mirror panel". But in fact, the brightness, roughness and defect status of the surface of 8K boards produced by different factories will be different.