Did you know that Stainless Steel is a poor conductor???

[Roger W4MW]

I am rebuilding the 6m antennas.  I was going to use stainless steel nuts/bolts to make connection from feedline to driven element.  On a whim, I looked up conductivity.  When I found this, I decided to purchase aluminum nuts/bolts for these critical connections.  

This is what I found on the internet:

Silver has the highest electrical conductivity. followed closely by copper, then aluminum, while stainless steel is a poor conductor.

Conductivity is often measured in % IACS (International Annealed Copper Standard), where silver is ~105%, copper 100%, aluminum ~61%, and stainless steel only ~2.5%

[Eric Sossoman]

Good to know..

--
You received this message because you are subscribed to the Google Groups "AA4ZZ VHF Contest Team" group.
To unsubscribe from this group and stop receiving emails from it, send an email to aa4zz-vhf-contest...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/aa4zz-vhf-contest-team/CALeEo9AjFtka5hDQqBUNO6xNpVwiDHN-bsVaKd1e4Z4SULxbNw%40mail.gmail.com.

[Aa4zz]

Brass is also used for electrical connections for example on many Morse Keys.

Not as good as the others in conductivity but far better than stainless:

Key Brass Conductivity Details:

• IACS Percentage: Commonly cited around 28% IACS, though it can vary slightly based on the specific alloy composition.

73 Paul

To view this discussion visit https://groups.google.com/d/msgid/aa4zz-vhf-contest-team/CABnKg6V55h%2BN-yKObueUHtAU6VDkWy-g93iE6ahPGrHD%3DoTyNg%40mail.gmail.com.

[Roger W4MW]

Paul, thanks for BRASS report.

SOLDER with lead/tin alloy is 8.5% IACS

Pure tin solder is 13.9% IACS

One thing I thought about was even though there are poor conductors they are also a very short distance.  

To view this discussion visit https://groups.google.com/d/msgid/aa4zz-vhf-contest-team/1646263814.716795.1776703440396%40mail.yahoo.com.