Tungsten carbide It is composed of carbon and tungsten. The molecular formula for this compound is WC, and the molecular weight is 195.85. Tungsten carbide is a hexagonal black crystal that has a metallic luster. Its hardness and durability are similar to those of diamond. It is also a good heat conductor and conductor for electricity. Tungsten carbide is not soluble with water, hydrochloric, or sulfuric acid. However, it can be dissolved in a mix of hydrofluoric, nitric, and phosphoric acid. Pure tungsten carbide is fragile. By adding titanium, cobalt or other metals, this fragility can be reduced.

Tungsten Carbide Preparation

The tungsten is mixed in a ball-mill with carbon black and the tungsten has been pressed into a plate. It can also be heated up to 14001700 degrees in an induction oven. In the hydrogen flow, initially W2C is produced. The reaction continues at high temperature, producing WC. Or, first tungsten is decomposed thermally in a CO atmosphere between 650 and 1000degC, to get tungsten, then carbon monoxide is added at 1150degC, to yield tungsten carburide. W2C is produced by temperatures above this point.
Tungsten trioxide, WO3, is hydrogenated and then reduced to form tungsten (average particle size of 35mm). Press-forming is done by applying pressures of approximately 1t/cm2 to a mixture of carbon black and tungsten trioxide in a dry-blended ratio (for about 10 hours). Pressurized material blocks can be placed into a crucible or graphite block and heated in a hydrogen stream using pure hydrogen (with a dewpoint below -35).

As the reaction is incomplete due to a low temperature (mainly), the unreacted tungsten and intermediate W2C remains besides the WC (tungsten carburide). The tungsten must therefore be heated at the temperature above. The maximum temperature must be determined based on the particle size. For coarse particles, with an average particle diameter of approximately 150 mm the reaction takes place at a temperature between 1550 and 1650degC.

Tungsten Carbide Application

Tungsten carbide is used in many applications, including high-speed cutters, furnace structural materials for jet engines, cermet material, resistance heating components, etc.

Tungsten carbide is used in the manufacture of cutting tools, wear-resistant components, melting crucibles (for metals like copper, cobalt, or bismuth), and wear-resistant semi-conductor films.

Tungsten carbide is used for super-hard material, and also as wear-resistant material. It is a solid solution that can be formed with many different carbides. WC-TiC-Co cermented-carbide tools have been used widely. It can also reduce the sintering temp and maintain good performance when used as an additive to NbC C and TaC C ternary system carburides. It can also be used for aerospace materials.

Tungsten carbide is produced by combining tungsten anhydride with graphite under a reducing atmospheric at temperatures between 14001600. By hot pressing sintering, or hot isostatic sintering, dense ceramic products can also be achieved.

Tech Co., Ltd. is a professional tungsten carbide powder Over 12 years in research and product development. You can contact us for high-quality tungsten carbide powder. Contact us Send an inquiry.

Tungsten carbide Compound composed of carbon and tungsten with the molecular formula WC. The molecular weight is 195.85. Tungsten carbide is a hexagonal crystal that is black and has a metallic luster. It is hard and is similar to diamond.
Tunsten Carbide Properties:
Tungsten carburide is a black hexagonal crystalline system. It dissolves in hydrofluoric, nitric, and mixed acids. The chemical properties are stable of tungsten carbide.

Tungsten carbide is a powdery gray color with a metallic sheen. It is insoluble with water, hydrochloric and sulfuric acids but soluble when mixed with nitric or hydrofluoric acid. The brittleness of pure tungsten can be decreased by adding titanium, cobalt or other metals.

Tungsten Carbide Application:
Tungsten carbide powder is used to make steel cutting tools. It’s often mixed with tantalum or titanium carbide. Tungsten carbide powder is used for the production of cemented carbide.

Tungsten carbide is used in many applications, including high-speed cutters, furnace structural materials for jet engines, cermet material, resistance heating components, etc.

Tungsten-carbide powder is used for cutting tools, wearable parts, melting pots for metals like copper, cobalt, or bismuth as well as wear-resistant semiconductor film.

Tungsten carbide is used for super-hard, wear-resistant tool materials. It can also form a solid mixture with many carbides. WC-TiC-Co cermented-carbide tools are commonly used. It can also reduce the sintering temp and maintain good performance when used as an additive to NbC C and TaC C ternary system carburides. It can also be used for aerospace materials.

Tungsten (WC), powder, is made by combining tungsten (WO3) with graphite under a reducing atmospheric at temperatures between 1400 and 1600 degrees.

Tech Co., Ltd. is a professional tungsten carbide powder With over 12 year experience in chemical product research and development. We accept payments by Credit Card, T/T (wire transfer), West Union, Paypal, and T/T. The goods will be shipped to overseas customers via FedEx or DHL.

You can contact us for high quality tungsten carbide powder. Contact us Send an inquiry.