MadSci Network: Physics

Re: Why is stainless steel not magnetic and does it block EMF radiation ?

Date: Wed May 10 10:34:37 2000
Posted By: Ronald Fisch, Physics, Washington University
Area of science: Physics
ID: 955835131.Ph

According to Encyclopedia Britannica Online, there are three types
of stainless steels, austenitic, ferritic and martensitic.  The austenitic
steels are nonmagnetic, but the other two types are magnetic.

All steels are metallic alloys.  Any metal will block electromagnetic
radiation at frequencies below its plasma frequency, which is typically
in the near ultraviolet part of the EM spectrum.

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