Tungsten Carbide is the hardest metal used in ring designs to date. Our tungsten rings are hypoallergenic and will not cause an allergic reaction to individuals with sensitive skin. Tungsten rings have the highest resistance against scratches compared to all the traditional metals. Tungsten rings are so hard, you are no longer required to constantly remove and replace your rings or wedding bands in order to protect the finish. A Tungsten ring makes a perfect wedding band because it is durable enough for every-day abuse and still have a high polish finish years later. Tungsten rings will not bend and should last a lifetime. Tungsten melts at an extraordinary 6,170 degrees Fahrenheit which is the highest melting point of all the metals known to man. Tungsten does not gain its extreme hardness until it is combined with Carbon making (WC) Tungsten Carbide. Tungsten Pure Form: Atomic number 74; atomic weight 183.84; melting point 6,170°F; boiling point 10,652°F.