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
-----

Hot dip plated brass vs pre-tin plated Cu Zn 30

2005

I would like to know the difference between a hot dip pre-tin plated brass and a pre-tin plated Cu Zn 30.

Please also provide me its efficiency (insulation and contact resistance and its orthodox electric current.

This is used for the terminal of a circuit.

Thank you very much.

Louie Lao
Automotive - Cebu, Philippines

A. Hi Louis. Personally, I have never heard of "hot dip brass" being applied as a plating on tin or otherwise. Sorry, but are you sure?

Brass is routinely electrodeposited, but I do not think "contact resistance" is the right way to look at it, since this will vary greatly with time -- brass tarnish is directly proportional to time and environment. I think a brass plated contact would only be of value where there is a dependable wiping action, like on a flashlight with a slide-to-on switch, and only on very temporary items like very cheap flashlights. Good luck.

Regards,

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

(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: