[TheForge] Forging of Chrome plated steel

Wed Mar 20 13:06:01 2002

A very quick, non-authoritative search reveals the hexavalent chromium =
(like chromium trioxide) is cancer-causing.  Apparently chromium dioxide =
is not so toxic.  I do not know whether the trioxide would form if you =
forge a bumper, but, judging by the fact that it is a very strong =
oxidizer, I suspect it would not.

BTW, there is much confusion about the term "heavy metal".  Chromium is =
NOT a heavy metal.  With an atomic weight of 52, it's lighter than iron =
(AW 56). =20

Even zinc (AW 65) is not a heavy metal.  That is not to say these metals =
cannot be toxic.  That's a separate issue.

Heavy metals typically are bad because the body doesn't eliminate them =AF =
so small exposures are cumulative.

Bruce
NJ

>>> Larry <[email protected]> 03/19/02 04:49PM >>>
Are there any serious risk's involved with forging of Chrome plated metal,
such as old car bumpers?  Seems to me I remember toxic problems similar to
forging galvanized mentioned.  Thanks!

Larry

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