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- To: tesla@xxxxxxxxxx
- Subject: Re: Tungsten
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- Date: Wed, 06 Apr 2005 17:57:17 -0600
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Original poster: jdwarshui@xxxxxxxxx
Tungsten in its pure form is said to be as soft as lead. Not to
surprisingly tungsten is almost always found as an alloy.
Tungsten carbide is not the same as a tungsten alloy, it is instead a
stoichiometric mix of carbon and tungsten. This means that the
proportions of one element to the other must be exact. (Alloys do not
need exact proportions)
The stuff they make milling cutters out of is finely granulated
tungsten carbide held together with binders. My recollection (which is
far from perfect) is that cobalt and nickel are the principle binders.
Cobalt and nickel (like iron) are ferromagnetic.