No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

Acid clean boiler part?

I have a electric utility customer who has some boiler parts, valve cages, that have become clogged with small (BB sized) metal pieces. The cages tests out to be 410 SS hardened. I am going to send some of the particles out to be tested but think they may be iron. What I am looking for is perhaps an acid cleaning method that would dissolve the contaminants without harming the boiler parts. Any suggestions would be greatly appreciated.

Joseph T. Tucker

2006

After a proper degrease step, nitric acid (50% water) will dissolve iron without affecting 400 series stainless steel. Trial on a safe area is recommended first.

Guillermo Marrufo

2006

(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: