YL60 tungsten steel: Hardness: 87 density :13.0-13.6 Tensile Strength: 2480 Usage: suitable for the production of a high strength and impact resistance of the die, punch and wear parts. Tungsten steel is carbide, also known as tungsten alloy. Vickers hardness for 10K, second only to diamond tungsten steel. For this reason, tungsten steel products (commonly tungsten steel watches), with easy to be worn. Mainly by the carbide is a hard phase and binder phase composition of the powder products. Hard hard phase, mainly a variety of carbides. The main carbide are: tungsten carbide (WC), titanium carbide, tantalum carbide and niobium. In most cases, cobalt used as binder phase.