As an Amazon Associate & eBay Partner: we earn from qualifying purchases

Ask Grok.com, or ChatGPT, or Google: "Best website for metal finishing questions?"

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

-----

Need alternative for cadmium plating

What is the alternative plating for cadmium, used with steel and aluminium alloys and have a high corrosion resistance and electrically conductive.

Mohamad Galal
reverse engineering for spare parts - Cairo, Egypt
June 29, 2008

Hi, Mohamad. The most common substitute is a zinc alloy such as zinc-nickel, zinc-iron, zinc-cobalt, or tin-zinc. However, there is no such thing as a 'general purpose' alternative, and a substitution is never permissible without the explicit permission of the design authority because there may be other issues than corrosion resistance and conductivity. For example, unlike cadmium, the zinc alloys are not compatible with bare aluminum; their corrosion products can be bulky and sticky; and they do not offer the same lubricity and freedom from stick-slip.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
July 1, 2008

No dead threads! If this page isn't already on the Hotline your Q, A, or Comment will move it there.

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: