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  • Tungsten carbide - Wikipedia

    OverviewNamingSynthesisChemical propertiesPhysical propertiesStructureApplicationsToxicity

    Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through a process called sintering for use in industrial machinery, cutting tools, abrasives, armor-piercing shells and jewellery. Tungsten carbide is approximately twice as stiff as steel, with a Young's modulusof approximately 530–

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  • Tungsten carbide chemical compound Britannica

    Tungsten carbide is a dense, metallike substance, light gray with a bluish tinge, that decomposes, rather than melts, at 2,600° C (4,700° F). It is prepared by heating powdered tungsten with carbon black in the presence of hydrogen at 1,400°–1,600° C (2,550°–2,900° F). For fabrication, a process developed in the 1920s is employed: the powdered tungsten carbide is mixed with another ...

  • Cemented tungsten carbide: material properties - Matmatch

    What Is Tungsten Carbide?A Plethora of GradesA Unique Material with Many Designable PropertiesThe Properties of Tungsten Carbide in Relation to Co Content and WC Grain SizeBut what is tungsten carbide? Tungsten carbide (also often referred to as ‘hard metal’) is a composite material fabricated by powder metallurgy, which consists of one or more hard material phases (e.g. tungsten carbide itself, hereafter referred to as WC) and a binder metal surrounding the hard material grains (e.g. cobalt, Co or nickel, Ni). The microstructure of a WC-Co carbide.As with all hard metals, the hard WC phase gives th在matmatch上查看更多信息
  • Cemented carbide - Wikipedia

    OverviewCompositionPhysical propertiesApplicationsHistorySee alsoExternal links

    Cemented carbide is a hard material used extensively as cutting tool material, as well as other industrial applications. It consists of fine particles of carbide cemented into a composite by a binder metal. Cemented carbides commonly use tungsten carbide (WC), titanium carbide (TiC), or tantalum carbide (TaC) as the aggregate. Mentions of "carbide" or "tungsten carbide" in industrial contexts usually refer to these cemented composites.

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  • Tungsten Carbide - an overview ScienceDirect Topics

    Tungsten carbide (WC) and cemented carbides, which are composed of WC with a binder phase, represent crucial materials for the fabrication of hard, wear-resistant tools across a wide range of industrial applications. With advances in powder production, as well as forming and sintering processes, there has consequently been a significant improvement in obtainable density and final ...

  • What is Tungsten Carbide or Hard Metal?

    2/08/2009  Applications of Tungsten Carbide and Hard Metals. Tungsten Carbides have a wide range of application in many industry sectors such as metal machining, wear parts for mining and oil industries, metal forming tools, cutting tips for saw blades and have now expanded to include consumer items such as wedding rings and watch cases, plus the ball that is in many ball point pens.

  • Tungsten Carbide and Tungsten Carbide Components by ...

    A cemented carbide is a composite material comprised of individual tungsten carbide grains imbedded in a ductile metal binder matrix of either cobalt or nickel. The physical and metallurgical properties of a particular “grade” of carbide are determined by its composition (its constituents and their relative amounts), the size distribution of the tungsten carbide grains after sintering, the ...

  • Carbide - Wikipedia

    Examples include calcium carbide (CaC 2), silicon carbide (SiC), tungsten carbide (WC; often called, simply, carbide when referring to machine tooling), and cementite (Fe 3 C), each used in key industrial applications. The naming of ionic carbides is not systematic. Salt-like / saline / ionic carbides. Salt-like carbides are composed of highly electropositive elements such as the alkali metals ...

  • Why is tungsten carbide an ideal tool material? - Meetyou ...

    10/08/2018  Tungsten carbide is the most widely used type of high-speed machining (HSM) tool material produced by powder metallurgy, consisting of hard carbide (usually tungsten carbide WC) particles and a softer metal bond. composition. At present, there are hundreds of WC-based tungsten carbides with different compositions, most of which use cobalt (Co) as a binder. Nickel (Ni) and

  • Tungsten: Properties, Production, Applications Alloys

    Tungsten carbide is produced either by bonding one tungsten atom with a single carbon atom (represented by the chemical symbol WC) or two tungsten atoms with a single carbon atom (W2C). It is done by heating tungsten powder with carbon at temperatures of 2550°F to 2900°F (1400°C to 1600°C) in a stream of hydrogen gas. According to Moh's hardness scale (a measure of one material's ability ...


    TUNGSTEN CARBIDE. Technical Description: Tungsten-Carbide Rod / Grade C-2 (ISO K20/K30) Sandvik H10F - Fine Grade (0.8 µm grain size) Chemical Composition: Cobalt - 10%, Tungsten-Carbide- Balance: Theoretical Density: Approx. 0.54 lb/in 3 or 14.8 gm/cm 3: Hardness: Rockwell "A" 92.1 or Vickers-H30V= 1,600: Transverse Rupture Strength: 623,000 psi or 4,300 N/mm 2:

  • Resources - Meetyou Carbide

    CEMENTED CARBIDE. This refers to a sintered composite composed of refractory metal carbides and metal binders. Among the metal carbides currently used, tungsten carbide (WC), titanium carbide (TiC), tantalum carbide (TaC) and tantalum carbide (NbC) ) is the most common ingredient.

  • Ceratizit \ Tungsten Carbide - Carbide components, parts ...

    Cemented carbide and cemented carbide components are made from extremely hard tungsten carbide and ductile cobalt. The two substances are mixed in the form of powder. The amount of cobalt used and the grain size of the tungsten carbide both have an impact on the performance characteristics of the carbide, such as hardness, bending strength and fracture toughness.

  • Cermet - Wikipedia

    A cermet is a composite material composed of ceramic (cer) and metal (met) materials. A cermet is ideally designed to have the optimal properties of both a ceramic, such as high temperature resistance and hardness, and those of a metal, such as the ability to undergo plastic deformation. The metal is used as a binder for an oxide, boride, or carbide. Generally, the metallic elements used are ...

  • About - Tungsten Rings Australia

    We use the best jewellery graded tungsten carbide to craft your rings, so you can purchase with the assurance that you are getting a premium product at a great price. Our rings. Tungsten is a highly scratch resistant alloy with a high melting point and is virtually indestructible. All Rings have a mix of the industry recommended 85% pure tungsten composition. All our rings are in stock and we ...

  • Tungsten - Wikipedia

    Tungsten, or wolfram, is a chemical element with the symbol W and atomic number 74. The name tungsten comes from the former Swedish name for the tungstate mineral scheelite, tungsten which means "heavy stone". Tungsten is a rare metal found naturally on Earth almost exclusively combined with other elements in chemical compounds rather than alone. It was identified as a new element in

  • Tungsten Carbide - an overview ScienceDirect Topics

    Tungsten carbide (WC) and cemented carbides, which are composed of WC with a binder phase, represent crucial materials for the fabrication of hard, wear-resistant tools across a wide range of industrial applications. With advances in powder production, as well as forming and sintering processes, there has consequently been a significant improvement in obtainable density and final ...

  • Tungsten Carbide Coring Bits - The Drill Shop

    The bit crown itself is composed of a tough, wear resistant metal-bond matrix material. The gauge diameters of the tool are also heavily set with tungsten-carbide wear pads. The application of this type of bit is primarily in geotechnical soil investigation or for core drilling in overburden layers that are composed mainly of clay, sand, gypsum or soft shale. ^ back to top. Carbide-Chip Core ...

  • About Tungsten Ceramic : Tungsten Carbide Ring,

    Our Tungsten Carbide Rings are composed of 85-88% of Tungsten Carbide, with a minority composition of materials including Tantalum, Titanium, Niobium and Chromium. In its raw form, tungsten is a steel-gray metal that is often hard to work. Of all metals in pure form, tungsten has the highest melting point (3,422’C, 6,192 ’F), lowest vapor pressure and (at temperatures above 1,650’C)

  • Fused Tungsten Carbide (FTC) Products – DURUM

    Fused Tungsten Carbide Products: MIG/MAG-Welding, Wire, Oxy-acytelene Welding and Shielded Metal Arc Welding (SMAW). PTA-Powder +49 2154-4837-0; [email protected]; COMPANY . Research Development; Systems engineering; Contract welding; Laboratories; APPLICATIONS; PRODUCTS. Tungsten Carbide and its Derivatives (Fused) Tungsten Carbide Products / FTC; Flux-Cored Wires;

  • Properties: Tungsten Carbide - An Overview

    Scheele discovered “Tungsten” in 1781; however, it took 150 years more before the efforts of Scheele and his successors led to the use of tungsten carbide in the industry.

  • Tungsten Carbide Material Safety Data Sheet by Federal

    The absence of methylated tungsten species also supports the claim that bioaccumulation is not expected to be of concern for tungsten carbide as an inorganic metal compound. Based on BCFs calculated from paired concentrations of tungsten in soil and worm, or soil and plant tissue, tungsten carbide exposures are not expected to result in the bioaccumulation of tungsten in terrestrial

  • HVAF HVOF Tungsten Carbide Coating: How to Spray

    Nominal composition: wt.% Tungsten carbide: Base: Total carbon: 5.3-5.4: Cobalt: 11-13: Powders are available where cobalt is replaced with nickel. The Properties of HVAF WC-Co Tungsten Carbide Coatings on Steel . WC-12Co thermal spray coatings are usually harder compared to coatings of WC-17Co as a result of higher tungsten carbide levels in the coating. The tungsten carbide WC-12Co

  • Cemented Tungsten Carbides ScienceDirect

    Tungsten carbide based cemented carbides pertain to a ternary W–Co–C system. In this context, the chapter discusses the relevant binary phase diagrams viz W–C, Co–C, and Co–W. Phase equilibria in ternary systems of transition metals and carbon are determined by the crystalline structure and thermodynamic properties of the carbides formed in the binary Me–C systems, as well as the ...

  • Tungsten Carbide Knowledge Base Nanomaterials

    Properties and Applications. Tungsten carbide (WC) is an inorganic non-natural compound composed of tungsten (W) and carbon (C). Mono-tungsten carbide (WC), which is stable at room temperature, is of major technical relevance.

  • Characterization of exposures among cemented tungsten ...

    As many as 30,000 workers in the United States of America are exposed to cemented tungsten carbides (CTC), alloys composed primarily of tungsten carbide and cobalt, which are used in cutting tools. Inhalation of cobalt-containing particles may be sufficient for the development of occupational asthma, whereas tungsten carbide particles in association with cobalt particles are associated with ...

  • Heat Treatment of Tungsten Carbide Products - Meetyou

    22/05/2019  Widely used are sintered alloys, which are generally sintered from tungsten carbide or titanium carbide and cobalt powder and have high hardness, wear resistance and hot hardness. Mainly used to manufacture high-speed cutting and processing of hard materials, in recent years, the use of carbide in the mold industry is also increasing, so it is of practical significance to discuss and study

  • Tungsten Carbide Properties

    Tungsten carbide’s low thermal expansion rate must be carefully considered when preforms are provided for grinding or EDM. 14. Coefficient of Friction - Tungsten carbide compositions exhibit low dry coefficient of friction values as compared to steels. 15. Galling - Tungsten carbide compositions have exceptional resistance to galling and welding at the surface. 16. Corrosion-Wear Resistance ...

  • Tungsten Carbide Grit Tungsten Pellets, Carbide ...

    Composite Rod. Composite rods consist of tungsten carbide particles suspended in a copper based binder for severe impact and wear applications. Tungsten carbide particles are typically ¼”, 3/16”, 1/8”, and 1/16” for aggressive cutting or high wear applications and

  • Tungsten Tungsten Carbide Global Tungsten

    Tungsten Carbide Powder: From our internally produced tungsten powders, GTP manufactures tungsten carbide powders in a range of sizes for use in a wide variety of hard material products. Our micrograin tungsten carbide powders are used for circuit board drills, nozzles and end mills. Fine WC powders are used in cutting tools and inserts. Medium and ultra-coarse powders are required for

  • How to Prevent Tungsten Carbide Corrosion - Meetyou

    24/07/2019  This kind of cemented carbide is often referred to as non-alloyed pure tungsten carbide, cutting cast iron or wear-resistant cemented carbide blades. They are all composed of fine polygonal tungsten carbide particles bonded with cobalt metal. However, they can also be bonded with nickel. This type of cemented carbide can be used for cutting cast iron, nonferrous metals, and non-ferrous metals ...

  • Tungsten Carbide Cobalt (WC-Co, Cemented Carbide ...

    Tungsten carbide-cobalt is an alloy of hard, ceramic tungsten carbide and the ductile cobalt, often known as cemented carbide. The material is a metal matrix composite, in which cobalt particles are ambedded in a tungsten carbide matrix. The tungsten carbide can form as WC or WC

  • China Cheap Tungsten Carbide Wire Suppliers - Free

    Tungsten carbide wire is composed of tungsten carbide, which is a compound composed of tungsten and carbon. The molecular formula is WC, and the molecular weight is 195.85. Send Inquiry Chat Now. Product Details. Tungsten carbide wire is composed of tungsten carbide, which is a compound composed of tungsten and carbon. The molecular formula is WC, and the molecular

  • Tungsten Carbide Blades Cadence Blades

    Cemented tungsten carbide is made by sintering (at high temperature) a combination of tungsten carbide powder with powdered cobalt (Co), a ductile metal that serves as a "binder" for the extremely hard tungsten carbide particles. The heat of the sintering process does not involve a reaction of the 2 constituents, but rather causes the cobalt to reach a near-liquid state and become like an ...

  • tungsten Uses, Properties, Facts Britannica

    Tungsten, chemical element that is an exceptionally strong metal. Occurrence, properties, and uses. The amount of tungsten in Earth’s crust is estimated to be 1.5 parts per million, or about 1.5 grams per ton of rock. China is the dominant producer of tungsten; in 2016 it produced over 80 percent of total tungsten mined, and it contained nearly two-thirds of the world’s reserves.

  • Tungsten Carbide and its Derivatives – DURUM

    Chem. composition: Crushed Tungsten Carbide with 6-10 % Co-content Applications: Mining, deep drilling–ason tool joints in the petroleum industry Characteristics: Concentrated wear protection for the area exposed to maximum wear Easy application of an extremely hard and abrasion resistant protective surface for highly stressed areas Request Data sheet. Crushed Tungsten Carbide with 6-10 % Co ...

  • Quality Tungsten Carbide Products Tungsten Carbide

    Zhuzhou Gingte Cemented Carbide Co.,LTD is best Tungsten Carbide Products, Tungsten Carbide Cold Heading Dies and Tungsten Carbide Die supplier, we

  • Praxair Tungsten Carbide Thermal Spray Powders -

    Tungsten carbide powders are commonly used in applications involving sliding wear erosion, impingement, abrasion, and fretting wear while providing low-temperature wear properties. Applying a tungsten carbide thermal spray powder creates a dense, hard, and tough coating that is well suited for industries such as petrochemical and marine .

  • Tungsten Carbide - Hi-Tech Seals Inc.

    A 94% WC / 6% NiCR Tungsten Carbide composition is the most popular blend used by Hi-Tech Seals’ clientele in the downhole tools industry. The nickel-bonding agent tends to perform better than other blends in a downhole environment. Cobalt blends are also used in various oilfield applications and tend to display better impact resistance over a WCNi blend. Hi-Tech Seals has gained experience ...

  • Tungsten Carbide-Cobalt Knowledge Base Nanomaterials

    Tungsten carbide-cobalt (WC-Co) is a so-called hard metal which is characterised by an extraordinary hardness and wear resistance. Hard metals are mainly used in the production of tools for milling, drilling and pressing/punching processes. In addition surgical instruments are made of tungsten carbide-cobalt and the best-known product is the rotating balls used in ball point pens. How can I ...