Discuss Advantages of CRGO in electromagnet in the Industrial Electrician Talk area at ElectriciansForums.net

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Hello Everyone,

I am building a custom electromagnet for DC. I have been through many offline and online stores recently to find CRGO silicon steel. Unfortunately the only ones I found would sell in quantities of tons.

I understand the advantages of CRGO for AC applications but after many days of research I have ended up with the question, whether do I really need a CRGO for DC as well?

Could somebody please explain.

Many thanks in advance.
 
Hello Everyone,

I am building a custom electromagnet for DC. I have been through many offline and online stores recently to find CRGO silicon steel. Unfortunately the only ones I found would sell in quantities of tons.

I understand the advantages of CRGO for AC applications but after many days of research I have ended up with the question, whether do I really need a CRGO for DC as well?

Could somebody please explain.

Many thanks in advance.
CRGO isn't necessary for a DC electromagnet if the field doesn't change quickly, grain-oriented steels are used to minimise AC losses in transformers or when you need a fast sweep of the magnetic field. Soft iron should be OK for a DC electromagnet, the best material will depend on what factors matter most for your application, you might want the maximum field density or a particularly uniform field (say).
 
Hi Shoei,

Thanks for the prompt reply.

What type of steel would be your recommendation for both factors, maximum field density and uniform field?
 

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