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Author: Subject: Big Tungsten sample
Tsjerk
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[*] posted on 30-11-2016 at 09:13
Big Tungsten sample


Hello everyone,

I'm looking for a piece of Tungsten, just as a curiosity for its high density.

I looked on eBay and found some really fancy kilo and two and a half kilo samples for over 200 euro, and smaller pieces of scrap. But not what I'm looking for.

I'm looking for around a kilo of cheapish metal in one piece, bigger would also be fine if the price is right. Does anyone know where I could find something like that?

[Edited on 30-11-2016 by Tsjerk]
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Heavy Walter
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[*] posted on 30-11-2016 at 10:00


Hi
My exclusive source of tungsten and molybdenum metals are damaged X-ray tubes, those with rotating anodes.
Are basically refractory alloys.
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crystal grower
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[*] posted on 30-11-2016 at 10:39


Yeah tungsten alloys may be a good choice, I have a piece of W80Cu20alloy which is really DENSE.



[Edited on 30-11-2016 by crystal grower]




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careysub
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[*] posted on 30-11-2016 at 12:05


Is 85-400 g of tungsten massive enough for your taste?

Used tungten cylinder electrodes are always on eBay in various masses (I see them from 85 g to 408 g right now), and they are cheap. I have one as a paper weight. Search for "Used Tungsten Metal Electrode Cylinder Rod" or some-such combination.

224 g:
http://www.ebay.com/itm/Tungsten-Metal-Electrode-Cylinder-Ro...

This one is 408 g:
http://www.ebay.com/itm/408-gram-99-9-Tungsten-Metal-Electro...

[Edited on 30-11-2016 by careysub]




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unionised
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[*] posted on 30-11-2016 at 13:06


http://www.ebay.co.uk/bhp/tungsten-darts
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j_sum1
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[*] posted on 1-12-2016 at 01:16


You could ask at Midwest Tungsten and see what they have.
https://www.tungsten.com/

They have an orphan bin in which they list surplus items. I recall seeing a large tungsten bar there once. Listed items do change but not regularly.

(And yes I have bought from them before. Service was good but shipping prohibitive to my corner of the globe.)




If you are interested, take a look at the latest offering from sum_lab:
A primer on metals and non-metals with at least one novel experiment.
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yobbo II
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[*] posted on 5-9-2017 at 14:44



There is some nice looking W here

https://www.hood.de/i/wolfram-rein-element-99-9-1000-g-5g-se...

Why have some of the samples (or bars) got a very rough but organised surface texture.



I think I have just found the answer. They seem to be electrodes from lamps?
http://www.ebay.com/itm/Tungsten-Metal-Electrode-Cylinder-Ro...

YOB

[Edited on 5-9-2017 by yobbo II]
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[*] posted on 6-11-2017 at 05:43


Apologies in advance for necroposting.

On the off chance that you are still looking, I've got a few kg's of tungsten powder. I'd be willing to send some to you if you can cover postage cost.
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