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Tungsten carbide is magnetic. I bought a "tungsten" cube from some shoddy Amazon vendor. It's a lot denser than steel, but not as dense as pure tungsten. It is
by bediger4000 2y ago
Tungsten carbide is magnetic. I bought a "tungsten" cube from some shoddy Amazon vendor. It's a lot denser than steel, but not as dense as pure tungsten. It is magnetic. The density of the cube is in the range of tungsten carbide.
- foobarian 2y agoI got one of those too, and it came with a manifest showing that there is about 5% of nickel in the composition so not too surprising. I would certainly be surprised if they could manufacture a pure cube (> 99.9%) for the price they sell it at :-)
- matsemann 2y agoWhat are you using the cubes for?
- extraduder_ire 2y agoThe most common use for tungsten cubes is as a kind of spooky ornament. Encountering a 4 inch cube that weighs over forty pounds is pretty weird.
- cyberax 2y ago> Tungsten carbide is magnetic Pure tungsten carbide is not. You just got some magnetic contaminants in it. This has is a good test for fake "gold" that can consist of tungsten core with a thin film of gold on top. It's pretty much impossible to get pure tungsten, so such "gold" ends up being magnetic.
- mianos 2y agoThe glue to hold the sintered carbide powder is cobalt or iron or whatever pot-metal crap they have on hand for cheap blocks. That would be where the magnetism is coming from. If it's highly magnetic you probably have little tungsten and a lot of binder.
- rowanG077 2y agoIt's probably not tungsten carbide but rather a common tungsten nickel alloy