Home /
Search 🔍
the Site
pub Where the world gathers for
plating, anodizing, & finishing Q&As since 1989

"Burnishing of 300 Series Stainless Steel"



For Esthetic Reasons, my client a bridge engineer wants to have a Bright Burnished (about 16-24RMS)appearance on large (>50'X 15'X 1/4") panels of 316L stainless steel being installed on a new highway bridge.

I hope I can purchase the material finished on one side to his requirements,but I will have to fabricate the panels from smaller sections. There will be at least 2 welded seams that will have to be matched up in textured appearance to the rest of the bridge panels.

How can this be done in the fab shop or field? How good will the finish match up be? What equipment is needed?

Gordon E. Smith
- Columbus, Ohio


After you grind the seam to make it level, you can restore the finish using a abrasive flap wheel or one of the woven Scoth Bright type wheels. A flexible shaft machine would be suitable for this operation.

Robert Kramer
- Roslyn, New York


When designers refer to a burnished finished they usually mean a non-linear grain/scratch pattern. As such I suggest after leveling the welds you go over the surface with a random orbital type sander. commercially this finish is referred to as a non-directional(burnished) finish. you will have to experiment with grit sizes to see what scratch pattern your customer wants, but on metal 60 or 80 grit is quite common. Note: random orbitals leave a random elliptical scratch pattern that when overlaps looks burnished. Your customer may also consider sandblasting which will give a uniform matte but not burnished finish. Several different medias exist for different finishes. Blasting of course would be the most economical ie. fastest

Jeff chadwick
- mississsauga,ontario,canada


It sounds to me the panels maybe able to be timesaved it will put a brush finish on the part to any grit youd like

scott regenauer
- st paul Minnesota

finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Chemicals &
Consult'g, Train'g
& Software

About/Contact    -    Privacy Policy    -    ©1995-2023 finishing.com, Pine Beach, New Jersey, USA