[TowerTalk] Magnetic 304 SS- Huh?

[Bob K6UJ]

Brian,

304SS has a higher ferrous percentage than other higher grade SS alloys and is fairly magnetic.
316SS for comparison is almost completely non ferrous and is non magnetic.
When I buy SS hardware for antenna projects I always check with a magnet to see the magnetism if any.
It is a quick way to gauge the SS alloy.  304SS will rust, not nearly as bad as carbon steel but it will rust.  
It depends on your application what grade of SS you need.  You pay a premium for the higher grades like 316SS.

Bob
K6UJ



On Mar 28, 2013, at 10:18 AM, Brian Alsop wrote:

> Guys,
> 
> I purchased a roll of 3/16" SS wire rope which was clearly labeled
> 304SS from Home Depot.
> 
> When I got home, I tested it with a magnet.  It was highly attractive.
> It gets returned.
> 
> I know there are some kinds of SS which show magnetism.
> 
> I think the explanation is "made in China" rather than some magical change in SS 304 properties as it crosses the Pacific.
> 
> Am I wrong?
> 
> 73 de Brian/K3KO
> 
> 
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