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Letter 35083
Removing magnetism from stainless steel 304
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I want to remove magnetism from stainless steel 304 Products after
they are cold worked.
thanks.
Shahzad Amin
factory - Pakistan
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plz tell me the ways to get rid of magnetic property of my cold
worked stainless steel 304 hinges, as my customers are not in the
sense of magnetic property in steel.
plz reply me soon by mechanical means.
thanks
qaisar
qaisar abbas
home - Pakistan
1st of two simultaneous responses--May
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If your parts are magnetic, i.e. they will stick to a piece of
iron, then you can run them through a degausser. That electrical
instrument will expose the parts to alternating polarity, continually
decreasing magnitude magnetic fields. This will remove residual
magnetism.
If you want your cold worked 300 series stainless steel parts to be
paramagnetic rather than ferromagnetic, then you need to anneal them.
My preference is to do so in accordance with AMS 2759/4, as I believe
it sets reasonable controls for the process. That document is
available from SAE.

Lee Gearhart
- East Aurora, NY
2nd of two simultaneous responses-- May
+++++
Heat to 1050-1100 degrees C and fast-cool.
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Bill Reynolds
consultant metallurgist
Ballarat, Victoria, Australia
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March 3, 2008
If you heat it, even with a torch, and or stress relieve cold
formed 300 series, it will remove the magnetic properties.
Dan Magalich
- Pittsburgh, PA, USA
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