Black tungsten carbide ring: isn’t it supposed to be scratch proof ?
February 25, 2010 by admin
Filed under Mens Titanium Ring
josh7066 asked:
I bought it from Titanium Kay to replace his old band.
I bought it from Titanium Kay to replace his old band.
http://www.titaniumkay.com/Black-Tungsten-Carbide-7mm-Flat-Wedding-Ring-P103262.html
It's been three weeks and it's badly scratched, revealing the silver color underneath. He works with computers, so nothing hard on the ring. I called the company and they sent another, but now I'm worried the same is going to happen to the new one! Is it a myth that tungsten carbide doesn't scratch? Anyone else have experience with a black tungsten carbide scratching?
Thanks!
Silver Belt Buckle
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I bought my boyfriend an engagement ring.crazy?
Men’s Diamond Ring
Tungsten carbide (WC) is always black or grey-black. It is as hard as corundum and could be scratched with emery (corundum) although it would be a lot of work. It can, of course, be scratched with diamond.
Looking at the web-site, it says that the binder is nickel. That means that the WC grains are set in about 10% (my guess) of Ni which is soft. Maybe they did not anneal it properly.