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You should really try it with a ferrite magnet, although I kindly doubt this setup can produce the H field required to fully magnetize it ( ~900,000 A/m). Ferrite magnets are considered the easiest to magnetize among the generally available materials.There's a programm called FEMM (finite element method magnetics) which lets you simulate and calculate the minimum current, turns and solenoid size you need to produce the very strong field necessary to build a useful magnetizer that can revive ferrite magnets. Not that this device is useless, it's really a nice proof of concept, but any small magnet can successfully magnetize an iron nail... The real deal is to remagnetize high coercivity materials such as hard ferrite such as the common C5, C8 or Y30 grades..