According to data released by the International Nickel Research Organization (INSG), the global nickel market supply surplus widened to 20500 tons in June 2022, compared with a revised surplus of 19500 tons in May. From January to June 2022, the global nickel market had a surplus of 30800 tons, compared with a shortage of 125500 tons in the same period last year.
Indonesia's president says the world's largest nickel producer is likely to tax nickel exports this year with a view to keeping more refining work at home.
Italy's ANSA news agency recently quoted European Natural Gas inventory (AGSI+) data as saying that as of August 16, Italy's natural gas reserves reached 78.19% of the highest reserves, 151.26 terawatt hours (about 1.62 billion cubic meters), ranking second in the European Union after Germany.
According to reports, the Japanese iron company East Japan Iron Institute recently admitted that the company's Chiba Junjin iron plant detected excessive cyanide as early as February 2019, but concealed the data and discharged toxic substances into the river as many as 39 times. The Chiba prefecture government has launched an investigation into the matter.
Because of the turbulent international situation, the supply and prices of many international bulk tungsten carbide are still very uncertain.
About Tungsten Carbide WC Powder:
Tungsten carbide is a compound composed of tungsten and carbon. Tungsten carbide formula is WC, and Tungsten carbide molecular weight is 195.85.
Tungsten carbide color: The most basic form of tungsten carbide is a fine gray powder, but it can be pressed into shapes through a process called sintering for use in industrial machinery, cutting tools, abrasives, armor-piercing bullets, and jewelry.
The stiffness of tungsten carbide is about twice that of steel, and Young's modulus is about 530-700 GPa (77,000 to 102,000 ksi), which is twice the density of steel and is almost between lead and gold. Its hardness is comparable to that of corundum (α-Al2O3), and only cubic boron nitride and diamond powder, grinding wheels and compounds with high hardness abrasives can be used for polishing and finishing.
Tungsten carbide is also used to make tungsten carbide rings, tungsten carbide mens rings, tungsten carbide wedding bands, tungsten carbide mens wedding bands, etc. Because tungsten carbide rings price is cheaper than gold or platinum rings, and tungsten carbide is more scratch-resistant than any other metal, and available in a wide variety of styles, colors, and inlays, like black tungsten carbide rings, tungsten carbide rings gold.
Black tungsten carbide is a hexagonal crystal with metallic luster and hardness similar to that of a diamond. It is a good conductor of electricity and heat. Tungsten carbide is insoluble in water, hydrochloric acid and sulfuric acid, but easily soluble in a mixed acid of nitric acid and hydrofluoric acid. Pure tungsten carbide is fragile, and if a small amount of titanium, cobalt and other metals are added, the brittleness can be reduced. Tungsten carbide used as a steel cutting tool is often added with titanium carbide, tantalum carbide or their mixture to improve the anti-knock ability. Tungsten carbide is chemically stable. Tungsten carbide powder is used in cemented carbide production materials.
Feel free to send an inquiry to get the latest price of tungsten carbide if you would like to buy tungsten carbide powder in bulk.
Performance of of of Tungsten carbide WC powder :
Black hexagonal crystals; Melting point 2870 ° C ± 50 ° C; Boiling point 6000 ° C; Dissolved in mixed acid of nitric acid and hydrofluoric acid, also in aqua regia; Insoluble in cold water; The relative density of 15.63; Strong acid resistance; High hardness, High elastic modulus; Use for the production of various alloys.
Technical parameters of Tungsten carbide WC powder :
|WC||Molecular Weight||Total Carbon||Free Carbon||O||As||Bi||Ca||Cd|
How is Tungsten Carbide WC Powder produced?
Using metal tungsten and carbon as raw materials, tungsten powder with an average particle size of 3 to 5 μm and carbon black of the same amount are dry mixed with a ball mill, fully mixed, press-molded, and placed into a graphite plate, and then placed in a graphite resistance furnace Or it can be heated to 1400～1700℃ in an induction furnace, preferably 1550～1650℃. In the hydrogen stream, W2C is initially produced and continues to react at high temperatures to produce WC. Or firstly, tungsten hexacarbonyl is thermally decomposed at 650-1000°C in the CO atmosphere to obtain tungsten powder, and then reacted with carbon monoxide at 1150°C to obtain WC. Temperatures higher than this temperature can generate W2C.
Chemical reaction formula:
2W + C = W2C
W + C = WC
Tungsten trioxide WO3 is hydrogenated and reduced to prepare tungsten powder (average particle size 3～5μm). Then, the mixture of tungsten powder and carbon black in an equimolar ratio (dry-blended with a ball mill for about 10 hours) is press-formed under a pressure of about 1t/cm2. Put the pressurized material block into a graphite pan or crucible, and heat it to 1400～1700℃ (preferably 1550～1650) in a hydrogen stream (using pure hydrogen with a dew point of -35℃) using a graphite resistance furnace or an induction electric furnace ℃), carburizing will produce WC. The reaction starts from around the tungsten particles, because W2C is generated at the beginning of the reaction, and because the reaction is incomplete (mainly because the reaction temperature is low), unreacted W and intermediate W2C remain in addition to WC. Therefore, it must be heated to the above-mentioned high temperature. The maximum temperature should be determined according to the particle size of raw tungsten. For coarse particles with an average particle size of about 150 μm, the reaction proceeds at a high temperature of 1550 to 1650°C.
Chemical reaction formula:
WO3 + 3H2 → W + 3H2O
2WO3 + 3C → 2W + 3CO2
2W + C = W2C
W + C = WC
Applications of Tungsten Carbide WC Powder:
Tungsten carbide is widely used as high-speed cutting tools, furnace structural materials, jet engine parts, cermet materials, resistance heating elements, etc. Used to manufacture cutting tools, wear-resistant parts, melting crucibles for metals such as copper, cobalt, and bismuth, and wear-resistant semiconductor films.
Tungsten carbide is used as super-hard tool material and wear-resistant material.
Tungsten carbide can form a solid solution with many carbides. WC-TiC-Co cemented carbide tools have been widely used.
Tungsten carbide can also be used as a modified additive of NbC-C and TaC-C ternary system carbides, which can reduce the sintering temperature and maintain excellent performance. It can be used as aerospace materials.
Tungsten carbide (WC) powder can also be synthesized by using tungsten anhydride (WO3) and graphite in a reducing atmosphere at a high temperature of 1400～1600℃. Dense ceramic products can be obtained by hot pressing sintering or hot isostatic pressing sintering.
Tungsten carbide (WC) powder can also be used to produce high capability nano-crystalline or superfine horniness alloy, hard-face abrasion-resistant spraying and petrochemical cracking catalyst; Chipless forming tools; Cutting tools; Mining tolls; Nano-composites (for enhanced hardness, strength, and wear resistance); Erosion-resistant coatings; wear-resistance coatings; Corrosion-resistant coatings; Wear-resistant parts.
Storage Condition of Tungsten carbide WC powder :
Tungsten carbide WC powder dispersion performance and using effects, therefore, niobium carbide NbC powder should be sealed in vacuum packing and stored in a cool and dry room, the niobium carbide can not be exposure to air. In addition, the NbC powder should be avoided under stress.
Packing & Shipping of Tungsten carbide WC powder :
We have many different kinds of packing which depend on the niobium carbide NbC powder quantity.
Tungsten carbide WC powder packing: vacuum packing, 1kg/bag, 25kg/barrel, or as your request.
Tungsten carbide WC powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality tungsten carbide powder, please feel free to contact us and send an inquiry. (email@example.com)
Tungsten Carbide Properties
|Other Names||tungsten(IV) carbide, WC powder|
|Appearance||Gray Black Powder|
|Solubility in H2O||N/A|
|Electrical Resistivity||1 10x Ω-m|
|Specific Heat||280 J/kg-K|
|Tensile Strength||350 MPa|
|Thermal Conductivity||85 W/m-K|
|Thermal Expansion||5.4 µm/m-K|
|Young's Modulus||630 GPa|
Tungsten Carbide Health & Safety Information
A spokesman for the Turkish presidential palace recently: the Black Sea Grain Export Joint Coordination Center may soon complete the final work of Ukraine's grain export route. The first ships carrying Ukrainian grain are expected to leave Ukraine's Black Sea port of Odessa on August 1 and re-export food to the international market. The grain ship will arrive in Istanbul, Turkey, as early as August 3, and then go to African countries.
Ukraine and Russia are both big grain exporters, among which Ukraine is known as the "granary of Europe". After the conflict between Russia and Ukraine broke out in February this year, grain exports of both countries were disrupted. The Ukrainian side accused the Russian army of blocking the Black Sea port on the Ukrainian side, resulting in more than 20 million tons of grain stranded in the port and unable to be transported by sea. The Russian side refutes this claim, accusing the Ukrainian side of laying a large number of mines in the waters near the port of the Black Sea, endangering navigation safety.
After coordination, Turkey, Russia, Ukraine and the United Nations Quartet signed an agreement in Istanbul on July 22 aimed at reopening blocked Black Sea transport routes. Ships carrying food can safely travel to and from three ports in southern Ukraine so that the stranded food of Ukraine can be transported to the international market. Russia and Ukraine agreed that neither side would attack ships carrying agricultural tungsten carbide are still very uncertain.
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