I look for a stainless steel whith high magnetic permeability for the manufacturing of solenoids (pole and plunger). Is the AISI 430 F the best stainless steel for this kind of applications? What can I do to increase this propertie (cold working, etc) whithout overcosting?
I would be very grateful if anyone help me!
I don't know anything at all about this Saul. I just noticed no one had answered it and I hate to see a good question go unanswered. So, I think the AISI 430 F is superior for it's cost and high magnetic qualities. It is an exceptional value. Bear in mind, I'm just making this up...
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Saul
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Mon 7 Jun, 2004 02:30 am
Thank you for your care Nick Fun, I appreciate your message!
I think this (AISI 430 F) is going to be my choice, although the difficult I had to find the right supplier, I think I found it already. (I'm in Portugal and the suppliers only work whith plastic mold steels, so the steel will come from Germany - ThyssenKrupp).
Thank's any way :wink:
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Garybaldi
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Mon 7 Jun, 2004 01:55 pm
well, as far as i know... cold working wouldnt increase the permeability!
Saul... have u considered silcon steel? its what they use in the cores of transformers... its got the highest magnetic permeability... u can surface treat it or something!
btw, sparks erode stainless steel... and it doesnt remain stainless!!
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Saul
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Tue 8 Jun, 2004 04:24 am
Cold Working
Many cold drawn and/or polished bars have a noticeable amount of magnetism as a result of the previous cold work. This is particularly the case with grades 304 and 303, and much less so for the higher nickel grades such as 310 and 316. Even within the chemical limitations of a single standard analysis range there can be a pronounced variation in the rate of inducement of magnetic response from cold work.
I hope this elucidates you about my question Garybaldi.
About the silcon steel, I didn't consider this but I will make a search. Thanks for your message.
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Garybaldi
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Wed 9 Jun, 2004 01:42 am
i learn something new everyday! i might be able to use that during my metallurgy exam next friday!
thanks for the info!
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akaMechsmith
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Tue 15 Jun, 2004 06:47 pm
Saul,
Stainless steel has so many disadvantages as far as machinability, lubrication, tendency to gall, etc. I'd first try a chrome plated mild steel if it's appropriate.
If nothing else will do Stainless is good but it's hard to live with
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Saul
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Wed 16 Jun, 2004 01:57 am
Thank you all, but I think I already found what I wanted.
Check out: