What is the difference between cemented carbide and tungsten steel?

Tungsten steel: the finished product contains about 18% tungsten alloy steel, tungsten steel belongs to tungsten carbide, also known as tungsten titanium alloy. The hardness is 10K, second only to diamond. Because of this, tungsten steel products (most commonly tungsten steel watches) have characteristics that are not easy to wear. Commonly used in lathe tools, percussion drill bits, glass knife head, tile cutter, strong not afraid of annealing, but brittle quality.

Cemented carbide: Attributed to the field of powder metallurgy, tungsten carbide, also known as cermet, is a metal carbide (WC, TaC, TiC, NbC, etc.) or metal oxides (such as Al2O3, ZrO2, etc.) as the primary component, to participate in the appropriate amount of metal powder (Co, Cr, Mo, Ni, Fe, etc.) made by powder metallurgy method, A ceramic having certain properties of metal. Cobalt (Co) is used to create a bonding effect in the alloy, that is, in the sintering process, it can surround tungsten carbide (WC) powder and tightly bond together, after cooling, it becomes cemented carbide. (the effect is equivalent to cement in concrete). Content usually: 3%--30% Tungsten carbide (WC) is the primary component of certain metal properties of this tungsten carbide or cermette, accounting for 70%-- 97% of the total composition (component ratio) is widely used in wear-resistant, high temperature resistance, corrosion resistance, working environment harsh parts or tools, tool head.

The difference between tungsten steel and cemented carbide is: tungsten steel is the use of steel making technology in molten steel to participate in tungsten iron as tungsten material melting, also known as high-speed steel or tool steel, the tungsten content is usually 15-25%; Tungsten carbide is sintered with cobalt or other bonding metals using powder metallurgy technology, and its tungsten content is usually more than 80%. Simply say that all hardness beyond HRC65 things as long as it is an alloy can be called carbide, tungsten steel is only a hardness of carbide between HRC85 and 92, often used to make knives.