Tesla Inc (TSLA)

[Lowjack]

Titanium is lighter and directs the fields around the outside. Whereas the individual Fe atoms tend to align to and increase the field strength. Best electromagnet has an Fe core!

With the cost of the other elements you are adding to the steel, you are approaching Titanium cost at current production. If you ramped up Titanium production the cost could come down to about copper + Electricity + Salt.

Could benefit SpaceX as Titanium is so much better than any Alminum alloy that can be produced.

Titanium’s magnetic susceptibility is very small
https://techiescientist.com/is-titanium-magnetic/
I'll include this as I anticipate a layer of TiO2 will be present.
https://www.nature.com/articles/s41598-019-41792-z

Interesting but not relevant at this time.
https://phys.org/news/2015-07-combined-titanium-gold-itinerant-antiferromagnetic.html

In your gif example Titanium does not allow the field into the core of the piece of material, it keeps it contained to the just a small subsurface layer(I speculate this is due to 4 free electrons that can adjust more easily, kind of like water tension). So if you wrapped one of them N52 magnets in a layer of Titanium with two holes drilled in the Titanium layer at the poles you would not see a meaningful reduction in the magnets strength but gain durability. You may even see a gain at the two holes due to magnetic field compression at the right angles of the material thickness.
https://incompliancemag.com/article/skin-effect-and-surface-currents/