Are All low carbons created magnetically equal
Are All low carbons created magnetically equal
(OP)
I looking to hand build various loud speakers just for fun, both a subwoofer mag assembly and ribbion tweeter. I've found rod, bar and sheet 1008 low carbon steels in mcmaster.com but it doesen't say anything about their magnetic properties.
My question is can any 1008 low carbon steel be used for mag assemblies or do I need to look for more than just the carbon content to know if its usable? and if so what do I need to look for and where can I find a small quantity vendor? thank you
My question is can any 1008 low carbon steel be used for mag assemblies or do I need to look for more than just the carbon content to know if its usable? and if so what do I need to look for and where can I find a small quantity vendor? thank you





RE: Are All low carbons created magnetically equal
You won't find magnetic properties for the material from McMaster Carr because it is prettty rare for a steel mill (with the exception of Carpenter, but then you have to buy the entire melt) to process steel to optimize the magnetic properties. They are more focused on controlling chemical composition and/or mechanical properties. Most purchasers of steel aren't buying it for magnetic applications.
However, the differences between different grades/batches/lots will probably only be evident if you are pushing the envelope on a design. For hobbyist use, I doubt you'll see much of a difference. The 1008 should serve you well.
RE: Are All low carbons created magnetically equal
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: Are All low carbons created magnetically equal
RE: Are All low carbons created magnetically equal
Forgive me for my amateur knowledge
RE: Are All low carbons created magnetically equal
Annealing takes high temp and very dry hydrogen atmosphere. It is an easy heat treatment, but not simple to do.
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: Are All low carbons created magnetically equal
RE: Are All low carbons created magnetically equal
http://www.key-to-steel.com/Articles/Art101.htm
http://ww
RE: Are All low carbons created magnetically equal
I have/do supplied/supply our CMI-C electrical core iron for audio speaker applications. Our Rod/Strip grades are specially melted with only "magnetics" in mind. Our Rod diameters fall in the .02% max. Carbon range and our strip is melted to a .008% max. Carbon level. I would use caution when thinking about IF steels and generic low carbon grades when you are trying to achive the lowest coercivity value that you can achieve in the Carbon family. ie. magnetic aging, fine grain structures, expensive decarb annealing without consistant results. Our core iron product has a great advantage in Low-Medium inductions of 15,000 - 18,500 gauss. In higher inductions our CMI-C has the ability to get to 21,500 gauss. SAE1008 would be in the area of 5,000 - 6,000 gauss due to a much finer grain structure coupled with a much higher Carbon/Nitrogen content. PS- I am a small and large quantity supplier of these grades.
Let me know if I can help!
lloyd@cmispecialty.com