coil cores iron or other ore

[mcorrade]

how important is it to have "iron" as your coil core vs other magnetic ores like steel?

I can't find iron anywhere. Any help is greatly appreciated

tanks,
-mike

[triffid]

I woul think you could locate some iron rebar from cement pouring outfits.Where ever cement is poured.
Just ask at a construction site for some waste or trash rebar. Steel is made from iron so steel might be ok for your coils.I have used nails before.Triffid

[triffid]

also wire clothes hangers would work too.Get enough of them together.to make a coil core.triffid