In article ,
Bob Stephens wrote:

I've heard this sort of Iron referred to as a "Curie Point" Iron. Is this
the same thing?

Probably so. A material's Curie point (or temperature) is the
temperature at which, when heated, the material ceases to be able to
support/retain a magnetic field, and any existing magnetic field is
randomized.

Heating a permanent magnet above its Curie temperature demagnetizes it.

The slugs used in the Weller tips have Curie temperatures of 600, 700,
or 800 degrees F (plus or minus a bit, I imagine).

--
Dave Platt AE6EO
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