[TowerTalk] Horse fence wire antenna

[Al Kozakiewicz]

Not if the material has been properly annealed.  Austenitic alloys, which the 300 series are, are non-magnetic by definition.

Cold working and some finishing operations can alter the crystalline structure of certain 300 alloys rendering them slightly magnetic, 304 being suseptible as such.

Don't take my word for it - http://www.mceproducts.com/knowledge-base/article/article-dtl.asp?id=18

Al
AB2ZY

________________________________________
From: towertalk-bounces at contesting.com [towertalk-bounces at contesting.com] On Behalf Of Bob K6UJ [k6uj at pacbell.net]
Sent: Wednesday, May 23, 2012 4:21 PM
To: Tower Talk
Subject: Re: [TowerTalk] Horse fence wire antenna

300 SS grades are magnetic, depending on the alloy.

We do a quick test to see if hardware is 304 or 316 SS with a small magnet in our shop.
304 is magnetic,  316 is very slightly magnetic, 316L shows no magnetic attraction at all.

Bob
K6UJ



On May 23, 2012, at 12:21 PM, Al Kozakiewicz wrote:

>
>
> ________________________________________
> From: towertalk-bounces at contesting.com [towertalk-bounces at contesting.com] On Behalf Of Mike Schatzberg [cherokeehillfarm at earthlink.net]
> Sent: Wednesday, May 23, 2012 2:58 PM
> To: richard at karlquist.com
> Cc: towertalk at contesting.com
> Subject: Re: [TowerTalk] Horse fence wire antenna
>
> Hi All,
>
> The 300 series stainless steels are magnetic, while the 400 series stainless steels are only slightly magnetic.
>
> You've got that backwards.  300 series are austenitic alloys and non magnetic.  400 series are ferritic and magnetic.
>
> Al
> AB2ZY
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk

_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk at contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk