Stainless steel

[Goodrat]

I always thought stainess steel was attracted by a magnet. But it seems after some research, that is not true. Any comments?
Here is a link to an explaination:



Stainless

[geo]

Re: Stainless steel

The soft iron yes it attracted by a magnet.The stainess steel no.It is a way to understand if a piece of iron is soft or steel.
Geo

[Carl-NC]

Re: Stainless steel

Some is, some isn't... depends on the alloy.

- Carl

[Goodrat]

Re: Stainless steel

See that link. Most of the time it is. It depends on the other alloys.

[Thomas Muck]

Re: Stainless steel

Hello,

austenitic stainless steel is non-magnetic.

Found this explanation on the i-net:

http://www.stainless-steel-world.net/basicfacts/what_austenitic.asp

Austenitic stainless steels are non-magnetic. When nickel is added to stainless steel in sufficient amounts the crystal structure changes to "austenite". The basic composition of austenitic stainless steels is 18% chromium and 8% nickel. This enhances their corrosion resistance and modifies the structure from ferritic to austenitic. Austenitic grades are the most commonly used stainless steels accounting for more than 70% of production (type 304 is the most commonly specified grade by far). They are not hardenable by heat treatment.
Super austenitic grades have enhanced pitting and crevice corrosion resistance compared with the ordinary austenitic or duplex types. This is due the further additions of chromium, molybdenum and nitrogen to these grades.

[Esteban]

Re: Stainless steel

Hi all

A person who build metal detector for food industries tell me that stainless steel is hardzarous to detect at low frequencies. This is the reason why they uses 300 kHz and more to detect any metal, include stainless steel.