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Black oxide
ID: black-oxide
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Black oxide
by
Wikipedia Bot
0
1970-01-01
Black oxide
is
a
conversion
coating
used to provide
corrosion
resistance and
a
decorative finish to
metal
surfaces
, primarily
steel
and
iron
. The process involves oxidizing the
metal
surface
to produce
a
layer of
magnetite
(Fe₃O₄), which gives the
metal
a
distinctive dark, black appearance.
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