PSN-L Email List Message

Subject: Re: looking for a book/s or web reference on iron/steel
From: "Charles R. Patton" charles.r.patton@........
Date: Thu, 04 Sep 2003 20:48:59 -0700


Hi Meredith,

Just to stick my nose in. Several mentions of magnetic properties were 
made. If you were thinking of properties in the low field region such as 
earth field measurements, Iíve only seen those properties in 
manufacturerís spec sheets for metals/ferrites suitable for low fields. 
Allied Signal for Metglas for instance:
http://www.metglas.com/
and Magnetic Metals for tranformer laminations and Permalloy:
http://www.magmet.com/

Standard steels/irons are pretty much unsuitable at low levels as their 
permeability drops pretty low around zero magnetization. Thatís why 
those applications are pretty much dominated by Metglas and Permalloy 
materials. For higher levels such as power transformers, you need to 
check with manufactures of EI laminations, such as Magnetic Metals 
above, who make the oriented silicon steels used in transformers. Their 
spec sheets will show saturation curves and energy loss curves.

The ASTM books should be great for structural and chemical properties.

Regards,
Charles Patton


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