Sciencemadness Discussion Board

Big Tungsten sample

Tsjerk - 30-11-2016 at 09:13

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]

Heavy Walter - 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.
Get in touch with service people!

crystal grower - 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]

careysub - 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]

unionised - 30-11-2016 at 13:06

http://www.ebay.co.uk/bhp/tungsten-darts

j_sum1 - 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.)

yobbo II - 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]

Mesa - 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.