TUNGSTEN CARBIDE MATERIAL FAVORABLE PRICE BEST AND TIMELY SERVICE Tungsten Carbide Properties (always see precautions in FAQ)Hardest metal on earthExtremely scratch-resistant4x harder than Titanium5x harder than steel10x harder than 18k goldHighest melting point of all metals 2780°C9 Mohs hardness scale, second to diamonds at 10The only metal that can be permanently polishedCommonly Used for ...