Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

Chime right in! (no registration req'd)

-----

"Remove scale from hot rolled steel stairs in prep for gun-bluing"





March 24, 2010

My name is John Hungerford, I am a general contractor engaged in the remodel of single family residences.
We are cladding some stairs in a residence as part of a major renovation, and the client wants a blue/black finish that he saw in a design studio. We used hot rolled steel.
Is there an easy way to remove the scale from hot rolled steel? We would prefer not to use bead or sandblast, and sanding is very difficult. We need to remove the scale down to the bare metal in order to accept a chosen finish; a gun blue patina.

John Hungerford
general contractor - Westchester, California
^


March 25, 2010

Hi, John. It isn't clear to me whether these stairs are in situ or are still in your shop. Bringing strong chemicals into a residence is a bad idea because these acids fume and the fumes will corrode everything. Bead blasting might be the better idea. But the steel can be pickled with muriatic acid to remove the scale. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^


March 27, 2010

John,

You can use steel cleaning gel. This gel does not attack the metal surface - only heavy heat oxides will be cleaned. It is also good for welding areas.

Contact us for more information.

anna_berkovich
Anna Berkovich
Russamer Lab
supporting advertiser

Pittsburgh, Pennsylvania
russamer labs banner
^

none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start 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:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact    -    Privacy Policy    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA