Tungsten carbide
Physical properties Uses Preparation- Product Name
- Tungsten carbide
- CAS No.
- 12070-12-1
- Chemical Name
- Tungsten carbide
- Synonyms
- ncic61198;Wolframcarbid;Nitinol Sheets;tungsten cabide;Tungsten carbid;Wolfram carbide;Tunsten carbide;TUNGSTEN CARBIDE;tungstencarbide(wc);tungsteniomethanide
- CBNumber
- CB5174366
- Molecular Formula
- CW
- Formula Weight
- 195.85
- MOL File
- 12070-12-1.mol
Tungsten carbide Property
- Melting point:
- 2870°C
- Boiling point:
- 6000°C
- Density
- 15,63 g/cm3
- solubility
- insoluble in H2O; soluble in HNO3/HF
- form
- powder
- color
- Gray
- Specific Gravity
- 15.63
- Resistivity
- 19.2 (ρ/μΩ.cm)
- Water Solubility
- Soluble in nitric acid and hydrofluroic acid. Insoluble in water.
- Crystal Structure
- Hexagonal
- Merck
- 14,9815
- Exposure limits
- ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3 - IARC
- 2A (Vol. 86) 2006
- EPA Substance Registry System
- Tungsten monocarbide (12070-12-1)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Hazard statements
-
H228Flammable solid
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P240Ground/bond container and receiving equipment.
P241Use explosion-proof electrical/ventilating/lighting/…/equipment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
N-Bromosuccinimide Price
- Product number
- 778346
- Product name
- Tungsten(IV) carbide
- Purity
- nanopowder, hexagonal, 150-200nm, ≥99% trace metals basis
- Packaging
- 25g
- Price
- $109
- Updated
- 2024/03/01
- Product number
- 241881
- Product name
- Tungsten(IV) carbide
- Purity
- powder, 2μm, ≥99%
- Packaging
- 100g
- Price
- $234
- Updated
- 2024/03/01
- Product number
- 012482
- Product name
- Tungsten carbide
- Purity
- 99.5% (metals basis)
- Packaging
- 100g
- Price
- $97.1
- Updated
- 2024/03/01
- Product number
- 012482
- Product name
- Tungsten carbide
- Purity
- 99.5% (metals basis)
- Packaging
- 500g
- Price
- $325
- Updated
- 2023/06/20
- Product number
- 93-7431
- Product name
- Tungsten carbide (99.5%-W)
- Packaging
- 50g
- Price
- $37
- Updated
- 2024/03/01
Tungsten carbide Chemical Properties,Usage,Production
Physical properties
Tungsten carbide is a dense, metal-like substance, light gray with a bluish tinge, that decomposes, rather than melts, at 2,600º C (4,700º F). Tungsten carbide has very high strength for a material so hard and rigid. Compressive strength is higher than virtually all melted and cast or forged metals and alloys; and is two to three times as rigid as steel and four to six times as rigid as cast iron and brass. High resistance to deformation and deflection is very valuable in those many applications where a combination of minimum deflection and good ultimate strength merits first consideration. For such a hard material with very high rigidity the impact resistance is high because it is in the range of hardened tool steels of lower hardness and compressive strength. It also performs well up to about 1000°F in oxidizing atmospheres and to 1500°F in non-oxidizing atmospheres; it undergoes no phase changes during heating and cooling, retains its stability indefinitely; and retains toughness and impact strength in the cryogenic temperature ranges. (-453°F.)
Tungsten carbide has exceptional resistance to galling and welding at the surface, and has sufficient resistance to corrosion-wear conditions for many applications. Tungsten carbide wears up to 100 times longer than steel in conditions including abrasion, erosion and galling. Wear resistance of tungsten carbide is better than that of wear-resistance tool steels.
Uses
Preparation
Tungsten carbide is prepared by heating powdered tungsten with carbon black in the presence of hydrogen at 1,400º1,600º C (2,550º-2,900º F). For fabrication, a process developed in the 1920s is employed: the powdered tungsten carbide is mixed with another powdered metal, usually cobalt, and pressed into the desired shape, then heated to temperatures of 1,400º-1,600º C; the other metal, which melts, wets and partially dissolves the grains of tungsten carbide, thus acting as a binder or cement. The cemented composites of tungsten carbide-cobalt are known by many different trade names, including Widia and Carboloy.
Chemical Properties
Gray powder. Mohs hardness of 9+ in solid form. Insoluble in water but readily attacked by a nitric acid– hydrofluoric acidmixture. Stable to 400C with chlorine, burns in fluorine at room temperature, oxidizes on heating in air.
Physical properties
Gray powder, dissolved by HF=HNO3 mixture. Cutting tools, wear-resistant semiconductor film. Corroded by molten metals Mg, Al, V, Cr, Mn, Ni, Cu, Zn, Nb, and Mo. Corrosion resistant to molten Sn and Ta.
Uses
Tungsten Carbide/Carbon (WC/C) is a black-gray colored coating of hard tungsten carbide particles in a soft amorphous carbon matrix. It is used for precision components with abrasive and adhesive wear, seizure problems (poor lubrication) and for dry machining applications.
Uses
Tungsten carbide is extensively used as a cutting tool for machining and in armor-piercing ammunition. It is also used in farriery, the shoeing of horses as well as to improve traction on slippery surfaces like roads or ice. It finds application in nuclear reactors as an effective neutron reflector. It is also used for making surgical instruments meant for open surgery such as scissors, forceps, hemostats, blade-handles and in laparoscopic surgery instruments such as graspers, cutter, needle holder and cautery. Further, it also used to make the rotating ball in the tips of ballpoint pens, bridal jewelry, and gauge blocks, which is useful for producing precision lengths in dimensional metrology.
Uses
Tungsten carbide is extremely hard and are excellent cutting materials. It is used extensivly in the tool and die industry for drilling and cutting tools, sand blasting nozzels, armor-piercing bullets, and studs to increase traction of tires.
Besides, it is used in dental burs, surgical instruments, wear-resistant coatings; in manufacture of cemented carbide; Substitute for noble metals in catalysis.
Definition
A ditungsten carbide, W2C, with similar physical properties is also known. WC is said to be the strongest of all structural materials.
Definition
A black powder,WC, made by heating powderedtungsten metal with lamp black at1600°C. It is extremely hard (9.5 onMohs’ scale) and is used in dies andcutting tools. A ditungsten carbide,W2C, also exists.
Hazard
Toxic by inhalation.
Flammability and Explosibility
Not classified
Industrial uses
Tungsten carbide with a 3 to 20% matrix ofcobalt is the most common structural RHM. Thelow-cobalt grades are used for applicationsrequiring wear resistance; the high-cobalt gradesserve where impact resistance is required.
Safety Profile
Chronic inhalation causes lung damage in humans. Ignites at 600°C in nitrogen oxide atmospheres. Violent reaction with F2, ClF3, NOx, IF5, PbO2, NO2, N20. See also TUNGSTEN COMPOUNDS.
Tungsten carbide Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Tungsten carbide manufacturers
- Product
- TUNGSTEN CARBIDE 12070-12-1
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-06-27
- Product
- TUNGSTEN CARBIDE 12070-12-1
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 100kg
- Release date
- 2019-07-09