Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

Stainless/aluminum electro reaction

We are considering using a product made of cast aluminum which is machined and tapped(threaded) into which a threaded stainless pin will be inserted.

Should I worry about a electro reaction between the two materials?

Mike Steinert
Shading Systems Manufacturer - Santa Ana, CA, U.S.A.
2004

You do not say what the end-use will be, but in general I would have a concern about the risk of corrosion.

Trevor Crichton
R&D practical scientist
Chesham, Bucks, UK
2004

Risk of corrosion IF the two metals are connected by an electrically conductive liquid away from the mechanical joint. No risk of corrosion if the service environment is dry.

Bill Reynolds [deceased]
consultant metallurgist - Ballarat, Victoria, Australia
We sadly relate the news that Bill passed away on Jan. 29, 2010.
2004

(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: