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The affect of annealing on Permeability

The affect of annealing on Permeability

(OP)
Does anyone have any quantitative data on how annealing affects permeability for low carbon steels? Perhaps some B-H curves before and after annealing? I'd like to get an idea of how much is to be gained by annealing.

RE: The affect of annealing on Permeability

Do a search within this forum using anneal as the search term, I found 69 results. Not all of them will apply exactly to your question, but it should help.

RE: The affect of annealing on Permeability

I have some sample data for 12L14 that the maximum permeability increased by a factor of 2.4. The effect of the annealing is going to vary tremendously depending on the condition of the unannealed material. In my case I think it was cold drawn bar so heavily cold worked.

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RE: The affect of annealing on Permeability

(OP)
Thanks for the information. Yeah, right now our material core specification calls out QQ-S-637, which is a Cold Finish spec. I would assume cold finishing without annealing would substantially reduce permeability.

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