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topic 2432

BA surface finish


I simply need to know what the BA stands for in AISI 304 or 316 surface finish. Just the names of the processes, please. For ex. Annealed, skin passed etc.

Tommi Carlson
Lappeenranta University of Technology - Finlan


1st of two responses received simultaneously (1998)


BA refers to Bright Annealed. A bright annealed finish is a mirror-like appearance produced by cold rolling, then annealing in a controlled atmosphere furnace. The final appearance is developed by a single light skin pass through a cold mill over highly polished rolls, but is also dependent on additional millwork, such as grinding the surface at an intermediate gauge. A bright annealed finish is often specified for architectual applications or where highly reflective surface is desired on the as-fabricated part.

I hope this is useful.


Bill Boatright

2nd of two responses received simultaneously (1998)


The BA stands for Bright Annealed. If you have any questions, please feel free to E-Mail me.



Bob Bramson
B&M Finishers / Prismatic Stainless Steel
supporting advertiser
Kenilworth, New Jersey

b&m finishers banner

April 17, 2008

What is surface roughness standard for BA(bright annealed) surface? 1.4016(sus430 BA type)-surface roughness.

Syariff Ahmad
- Malaysia

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