You might think that if you measure the size of your finger accurately, the ring will fit your finger, but in fact, the size of your finger will vary with age, weight gain or weight loss, and you will need to adjust the size of the ring. So, can tungsten band rings be resized?

Tungsten carbide behaves more like a ceramic than a metal. Pure tungsten is a metal, but many metals can bond with non-metal elements and then become ceramics. Depending on how the different atoms share their electrons with each other in a ceramic, the atomic bonding is either covalent, or ionic. Covalent and ionic bonds are stronger than metallic bonds, which means they have higher melting points, are harder, and also less ductile. Glass, bricks, and gemstones are common ceramics which are very strong and hard, but are also brittle. When tungsten is forged with carbon and becomes tungsten carbide, it forms covalent bonds and becomes very hard but also brittle.

Tungsten carbide rings can’t be resized for two reasons: Firstly, they are too brittle, and their atomic bonding, which forms during sintering, doesn’t bond with additional material. The process of resizing rings involves cutting them, and adding/removing metal of the same alloy. Trying to resize a tungsten carbide ring isn’t possible because the ring isn’t flexible, so cutting it is as risky as cutting glass and it could break in an unwanted direction.

Secondly, the rings are formed by a sintering process whereby you put tungsten and carbon powder in a mold and heat them up incredibly hot in a vacuum furnace, and it forms as one solid piece. Even if you cut the ring, reheating it wouldn’t cause the ring to become more flexible or form sufficient bonds at the area which was cut before/after removing material. The temperature required to allow the ring to be flexible enough to be forged would be so high that the ring would melt and lose its entire shape.

In a word, a tungsten ring cannot physically be resized. But if you purchase a ring from Findurings your ring will be covered by a resizing guarantee. And you don’t need to go to a jewelry store or pay for a resizing service.