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Note: This post was recovered from the Sh.org archive.
Username: ISeenItFirst
Date: 2019-07-04 17:02:45
Reaction Score: 0
OMG. Please don't. I was trying to keep this simple.I'm not trying to pour gasoline on a fire here. I do believe in civil discourse. I thought to give my two cents regarding the two quotes above.
Beins I am a well rounded metal fabricator and welder, custom, industrial, etc, for several decades, I would have to disagree with both of you that 304 SS isn't magnetic.
304 has it's place and purpose, and it has slight magnetic properties. In layman's terms, I would refer to 304 as an impure SS alloy in the big picture of SS, 316/316L being far superior regarding purity.
A lot of industrial fabrication shops work with a lot of 316, and 304, and most all have an area that keep usable scrap from the plate shear, plasma table, etc. How did I used to tell which was 304, and which was 316 if it had no visible markings... A magnet.
I just tested my kitchen sink, and it's slightly magnetic as well![]()
You are, of course, 100% correct. 304 comes in multiple varieties (microgroups), and the variety most commonly used in kitchens is slightly ferromagnetic (although at a level well below what would normally be called "magnetic"). The austenitic iron, is not ferromagnetic. However this structure can be changed by things like cold working or welding. The austenitic forms of iron present have even been shown to occaisonally spontaneously change to ferritic or martensitic, and the levels of Nickel or Chromium present in the specific alloy (within the range for the type) can have an effect as well.
Well we first have to rule out the impossible (magnetic induction) so we can see what remains. ;o)90% of the forum members probably have no idea what these 316s and 304s are.
Most of us simply want to know whether a regular forest fire could cause the damages suffered by Cali.
