We use terminal lugs made from brass with electrotin finish. The terminal lugs are used for electrical ground. Is tin whiskers a problem with this material and finish? Would solder dipping the terminal lug in SN63 solder reduce or eliminate the risk of tin whiskers?
Nozer S. Dastoor - Mason, Ohio, USA ^
Tin whiskers is a problem on pure tin. If you co-deposit a little bismuth or use a tin/lead bath no problem. Reflow also is a cure, as id the solder dip you suggested. Of interest is that one of the things that favors whisker growth is under compressive stress....like a lug bolted down
Jon Quirt - Fridley, Minnesota ^
finishing.com is made possible by ... this text gets replaced with bannerText
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: