metal bracket on hard drive magnets ?

Originally Posted by Kaffegeek

Many people think the brackets are a nickel superalloy called permalloy or MUmetal in fact magnet brackets are low carbon steel. Pure iron is one if the best flux carrying materials to use. Cold rolled low carbon steel is a trade-off for manufacturability. The brackets are plated in a nickel alloy and the unique dual polarity of the magnets allow for one direction magnetic field.

Where's the proof as most "experts" say that it mumetal or permalloy. Not being a smart a$$ but your going against everything being printed and the buyers that are buying them for the alloy.