Tungsten pin is a very hard heat-resistant pin made of tungsten.
Tungsten pin is widely used as vise,electrodes,fishing sinker and microsurgical.
The commercial uses of tungsten fall into two categories: those that exploit its high strength at high temperatures and those that exploit its density.Combined with the applications,it clearly shows that tungsten pin not only exploits tungsten's high strength in high temperature,also exploits tungsten's density.
Tungsten has the highest melting point of all the elements at 6,700 degres F. Although tungsten is not as strong as any other metals at normal temperatures, once you get into very high temperatures (yellow or white hot), the others start melting or dropping dramatically in strength, while tungsten keps up a relatively high strength,so tungsten pin is often used as electrodes.
Tungsten is about 10 times harder than 18K Gold, 5 times harder than tool steel, and 4 times harder than titanium,So tungsten pin vise is more harder than other type of vise.
Tungsten is also by far the highest density element you can buy for less than precious metal prices. It's exactly the same density as gold, but a hundred or more times cheaper. Tungsten has high density, in applications where size is counts, tungsten is used,tungsten pin fishing sinker for instance,where neding high mass in limited volume for the sake of increasing penetrating power,especially in muddy or wood.
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