| Author |
 Topic  |
|
|
Ardent Listener
Administrator
USA
4841 Posts |
 Posted - 04/10/2008 : 14:23:43
|
I came across this and I thought some of you may be interested for your scrapping activities.
A.L.
You must be logged in to see this link.
When it comes to classifying stainless steel as having magnetic properties, there is not a simple yes and no answer. Instead, the proper response would be to state that it depends. Here is some information about stainless steel that will help to identify situations in which this alloy exhibits magnetic properties, and when it does not.
It is important to understand that stainless steel is not a pure magnetic metal. In fact, stainless steel is really a collective name for a steel alloy that is mixed with other metals in order to give it the properties that make the metal compound so desirable. For instance, the typical stainless steel contains just over ten percent of chromium.
In fact, it is the presence of the chromium that provides stainless steel with the ability to repel permanent stains and keep looking fresh and clean over long periods of time. The chromium essentially creates a protective layer on the alloy that prevents rusting and makes the metal resistant to any real damage. Any scratches to the surface are simply filled in by this protective layer, making it possible to prevent corrosion to occur. It is the introduction of chromium into the mix that we refer to as stainless steel that makes it possible for the alloy to exhibit magnetic properties.
It is important to note that other metals may be introduced into the steel compound as well as the chromium. One of these metals is nickel. Essentially, the addition of nickel to the stainless steel compound helps to strengthen the protective qualities of the chromium. Generally referred to as a 300 series, stainless steel that contains nickel is not magnetic at all. The reason is that the presence of the nickel alters the physical structure of the stainless steel and removes or inhibits any magnetic qualities.
|
Realcent.forumco.com disclosure. Please read.
All posts either by the members, moderators, and the administration of http://realcent.forumco.com are for your edification and amusement only. It is not the intent of realcent.forumco.com or its host to provide investment, medical, matrimonial, legal, security or tax advice and nothing posted here should be considered to be so. All rights reserved.
Think positive. |
|
|
Cerulean
Penny Hoarding Member
USA
993 Posts |
Posted - 04/11/2008 : 13:07:56
|
I smell a rat here. Iron and steel are magnetic. So is nickel. All those 99% nickel Canadian coins stick to magnets too. If you mix two magnetic metals together, how is the resulting alloy going to be any less magnetic?
Now I have heard that higher grades of stainless steel, ones with higher concentrations of chromium, aren't magnetic. |
Sorting Map
2010 First Finds Contest
Are you a Buffalo Hunter?
Wanna take seignorage away from the Fed? Spend *any* coins!
We cannot afford this government.
Cerulean's Standing Offer: $3/lb shipped for foreign coins |
 |
|
|
n/a
deleted
478 Posts |
Posted - 04/12/2008 : 17:47:35
|
| I've seen 300 series high nickle / chrome steel pipe and tube that a magnet will barely attach to. It won't stick under it's own weight. FWIW This stuff also has a very high scrap value. Over $1.20 a pound last time I check. |
|
|
|
Flbandit
Penny Hoarding Member
USA
851 Posts |
Posted - 04/13/2008 : 14:32:11
|
| Yeah, most SS I've dealt with is non-magnetic. However, I know some of it is. |
Are you throwing that out? |
|
|
|
n/a
deleted
478 Posts |
Posted - 04/18/2008 : 18:14:14
|
The most magnetic stainless steel I've seen is the type used in flatwear.
Stainless used in chemical piping or high heat applications will not allow a magnet to stick to it. Just my experience. |
|
|
|
n/a
deleted
110 Posts |
Posted - 04/18/2008 : 18:36:21
|
quote:
Originally posted by Flbandit
Yeah, most SS I've dealt with is non-magnetic. However, I know some of it is.
It's the opposite for me, most of the stainless I've found is magnetic. It's getting to the point where I can almost tell just by looking at it, what it's magnetic properties are. |
24 Empty Missile Tubes, A Giant Mushroom Cloud....It's Miller Time!!! |
|
|
| |
Topic |
|
|
|
Stainless steel & magnetic properties.
Forum Locked
