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<!doctype html> <html lang="en"> <head> <meta charset="UTF-8" /> <title>Tungsten Powder -Manufacturer and Supplier CHINATUNGSTEN ONLINE</title> <meta name="keywords" content="tungsten powder,tungsten metal powder,tungsten carbide powder"> <meta name="description" content="Tungsten powder is used as raw materials for tungsten carbide powder, other tungsten products and emerging industry like anti-radiation fabric, fire-proof clothing and anti-fouling coatings."> <link href="css/bootstrap.min.css" rel="stylesheet" media="screen"> <link href="favicon.ico" rel="shortcut icon" type="image/x-icon" />  <link href="css/style.css" rel="stylesheet" media="screen" /> <link href="favicon.ico" rel="shortcut icon" type="image/x-icon" /> </head> <body> <div class="container">  <div id="header"><span class="pl"><img src="pic\logo.jpg" border="0"></span> <span class="cert"><a target="_blank" href="http://www.chinatungsten.com/chinatungsten-established.html" class="certfont">ESTABLISHED 1997</a><br> <a 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Method</a></div> <div class="accordion-inner"><a href="tungsten-powder-application.html" >Tungsten Powder Application</a></div> <div class="accordion-inner"><a href="National-Standard-of-Tungsten-Powder.html" >Tungsten Powder National Standard</a></div> <div class="accordion-inner"><a href="Order-Tungsten-Powder.html" >How to Order Tungsten Powder</a></div> <div class="accordion-inner"><a href="Tungsten-Powder.html" >Tungsten Powder</a></div> <div class="accordion-inner"><a href="spherical-tungsten-powder.html" >Spherical Tungsten Powder</a></div> <div class="accordion-inner"><a href="spherical-tungsten-powder-producing-method.html" >Spherical Tungsten Powder Production Method</a></div> <div class="accordion-inner"><a href="3D-printing-performance-requirements-on-metal-powder.html" >3D Printing Performance Requirements on Metal Powder</a></div> <div class="accordion-inner"><a href="3D-printing-spherical-powder-preparation-method.html" >Preparation Method of 3D Printing Spherical Powder</a></div> <div class="accordion-inner"><a href="3D-printing-spherical-tungsten-powder-national-standard.html" >Spherical Tungsten Powder National Standard</a></div> <div class="accordion-inner"><a href="nano-tungsten-powder.html" >Nanometer Tungsten Powder</a></div> <div class="accordion-inner"><a href="ultrafine-tungsten-powder.html" >Ultrafine Tungsten Powder</a></div> <div class="accordion-inner"><a href="fine-tungsten-powder.html" >Fine Tungsten Powder</a></div> <div class="accordion-inner"><a href="Medium-Tungsten-Powder.html"> Medium Tungsten Powder</a></div> <div class="accordion-inner"><a href="coarse-tungsten-powder.html" >Coarse Tungsten Powder</a></div> <div class="accordion-inner"><a href="fine-tungsten-powder-producing-method.html" >Fine Tungsten Powder Producing Method</a></div> <div class="accordion-inner"><a href="coarse-tungsten-powder-producing-method.html" >Coarse Tungsten Powder Producing Method</a></div> <div class="accordion-inner"><a href="crystalline-tungsten-powder.html" >Crystalline Tungsten Powder</a></div> <div class="accordion-inner"><a href="granulated-tungsten-powder.html" >Granulated Tungsten Powder</a></div> <div class="accordion-inner"><a href="Tungsten-Granule.html" >Tungsten Granule</a></div> <div class="accordion-inner"><a href="Ready-to-Press-Powder.html">Ready Press Tungsten Powder</a></div> <div class="accordion-inner"><a href="high-density-tungsten-powder.html">High Density Tungsten Powder</a></div> <div class="accordion-inner"><a href="wide-specification-tungsten-powder.html" >Wide Specification Tungsten Powder</a></div> <div class="accordion-inner"><a href="high-purity-tungsten-powder.html">High Purity Tungsten Powder</a></div> <div class="accordion-inner"><a href="Sem-micrograph-of-tungsten-powder.html" >Tungsten Powder SEM Micrograph </a></div> <div class="accordion-inner"><a href="tungsten-powder-export.html">Tungsten Powder Export</a></div> <div class="accordion-inner"><a href="waste-tungsten-powder.html">Waste Tungsten Powder</a></div> <div class="accordion-inner"><a href="titanium-tungsten-powder.html">Titanium Tungsten Powder</a></div> <div class="accordion-inner"><a href="titanium-tungsten-vanadium-powder.html">Titanium Tungsten Vanadium Powder</a></div> <div class="accordion-inner"><a href="tungsten-slurry.html">Tungsten Slurry</a></div></div> </div> <div class="accordion-group"> <div class="accordion-heading"><strong class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapse2">Tungsten Carbide Powder >></strong></div> <div id="collapse2" class="accordion-body collapse"> <div class="accordion-inner"><a href="What-is-Tungsten-Carbide-Powder.html">What is Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="National-Standard-of-Tungsten-Carbide-Powder.html">Tungsten Carbide Powder National Standard</a></div> <div class="accordion-inner"><a href="Order-Tungsten-Carbide-Powder.html">How to Order Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="Tungsten-Carburization.html">Tungsten Carburization</a></div> <div class="accordion-inner"><a href="High-Temperature-Carburization.html">High Temperature Carburization</a></div> <div class="accordion-inner"><a href="Direct-Carburization.html">Direct Carburization</a></div> <div class="accordion-inner"><a href="carbon-content.html">Carbon Content </a></div> <div class="accordion-inner"><a href="Tungsten-Carbide-Powder.html" >Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="tungsten-carbide-powder-specification.html" >Tungsten Carbide Powder Specification</a></div> <div class="accordion-inner"><a href="tungsten-carbide-powder-producing-method.html" >Tungsten Carbide Powder Producing Method</a></div> <div class="accordion-inner"><a href="tungsten-carbide-powder-application.html" >Tungsten Carbide Powder Application</a></div> <div class="accordion-inner"><a href="nano-tungsten-carbide-powder.html" >Nano Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="urltra-fine-tungsten-carbide-powder.html">Ultra-fine Tungsten Carbide Powder</a> </div> <div class="accordion-inner"><a href="urltra-fine-tungsten-carbide-powder-process.html">Ultra-fine Tungsten Carbide Powder Process</a> </div> <div class="accordion-inner"><a href="fine-tungsten-carbide-powder.html" >Fine Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="cast-tungsten-carbide-powder.html" >Cast Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="spherical-cast-tungsten-carbide-powder.html" >Spherical Cast Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="macro-tungsten-carbide-powder.html" >Macro Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="native-tungsten-carbide-powder.html" >Native Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="reproduced-tungsten-carbide-powder.html" >Reproduced Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="nickle-based-tungsten-carbide-powder.html" >Nickle Based Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="Tungsten-Carbide-Granule.html"> Tungsten Carbide Granule</a></div> <div class="accordion-inner"><a href="Sem-micrograph-of-tungsten-carbide-powder.html">Tungsten Carbide Powder SEM Micrograph </a></div> <div class="accordion-inner"><a href="what-are-applications-of-tungsten-carbide-powder.html">What are the Applications of Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="tungsten-carbide-powder-particle-size-sieving-standard.html">Particle Size Sieving Standard</a></div> <div class="accordion-inner"><a href="tungsten-carbide-powder-content.html">Main Content and Impurity Content</a></div> <div class="accordion-inner"><a href="tungsten-carbide-powder-grade.html">Tungsten Carbde Powder Grade</a></div> <div class="accordion-inner"><a href="what-is-tungsten-carbide.html">What Is Tungsten Carbide?</a></div> <div class="accordion-inner"><a href="what-is-tungsten-carbide-powder-TCP.html">What Is Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="tungsten-carbide-powder-price-affecting-factor.html">Price Determining Factor</a></div> <div class="accordion-inner"><a href="different-size-WC-powder-application.html">What are the Different Uses of Tungsten Carbide Powder with Different Particle Sizes?</a></div> <div class="accordion-inner"><a href="What-Is-Carbon-Content-Corresponding-Different-Oxygen-Content-of-Tungsten-Carbide-Powder.html">What Is The Carbon Content Corresponding to Different Oxygen Content of Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="What-Is the-Carbon-Mixing-to-Different-Carbon-Content-of-Tungsten-Carbide-Powder.html">What Is the Carbon Mixing to Different Carbon Content of Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="free-carbon-in-tungsten-carbide-powder-and-its-effect-on-cemented-carbide.html">Free Carbon in Tungsten Carbide Powder and Its Effect on Cemented Carbide</a></div> <div class="accordion-inner"><a href="carbon-content-of-tungsten-carbide-powder.html">What Is the Carbon Content of Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="how-is-tungsten-carbide-powder-mixed-with-carbon.html">How Is Tungsten Carbide Powder Mixed with Carbon?</a></div> <div class="accordion-inner"><a href="factors-affecting-carbonization-process-tungsten-carbide-powder.html">What Are the Factors Affecting Carbonization Process of Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="what-are-preparation-methods-of-ultra-coarse-tungsten-carbide-powder.html">What Are the Factors Affecting Carbonization Process of Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="what-is-carburization.html">What Is Carburization?</a></div> <div class="accordion-inner"><a href="what-is-decarbonization.html">What Is Decarbonization?</a></div> <div class="accordion-inner"><a href="production-methods-of-ultrafine-tungsten-carbide-powder.html">What Are The Production Methods of Ultrafine Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="what-are-main-industrial-production-method-of-tungsten-carbide-powder.html">What Is the Main Industrial Production Method of Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="what-are-main-physical-properties-of-tungsten-carbide-powder.html">What Are the Main Physical Properties of Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="packaging-storage-transportation-conditions-of-tungsten-carbide-powder.html">Packing, Storage and Transportation Conditions of Tungsten Carbide Powder Specified in National Standard</a></div> <div class="accordion-inner"><a href="what-is-difference-between-crystal-structure-of-WC-and-W2C.html">What Is the Difference Between the Crystal Structure of WC And W2C?</a></div> <div class="accordion-inner"><a href="what-is-toxicity-of-tungsten-carbide-powder-and-how-to-protect.html">What Is the Toxicity of Tungsten Carbide Powder and How To Protect?</a></div> <div class="accordion-inner"><a href="what-are-methods-of-producing-tungsten-carbide-powder.html">What Are the Methods of Producing Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="safety-information-of-tungsten-carbide-powder.html">What Is the Safety Information of Tungsten Carbide Powder?</a></div> <div class="accordion-inner"><a href="crystalline-tungsten-powder-production-method.html">Crystalline Tungsten Powder Production Process</a></div> <div class="accordion-inner"><a href="superfine-tungsten-carbide-powder.html">Superfine Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="nano-tungsten-carbide-powder.html">Nanometer Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="crystalline-tungsten-carbide-powder.html">Crystalline Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="tungsten-compound-carbide-powder.html">Tungsten Compound Carbide Powder</a></div> <div class="accordion-inner"><a href="composite-thermal-spray-powder-WC-powder.html">Composite Tungsten Carbide Thermal Spray Powder </a></div> <div class="accordion-inner"><a href="spherical-tungsten-carbide-powder.html">Spherical Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="reproduced-tungsten-carbide-powder.html">Reproduced Tungsten Carbide Powder</a></div> <div class="accordion-inner"><a href="spherical-cast-tungsten-carbide-powder-producing-method.html">Preparation Technology of Spherical Cast Tungsten Carbide Powder</a></div> </div> </div> <div class="accordion-group"> <div class="accordion-heading"><strong class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapse3">Sodium Tungstate >></strong></div> <div id="collapse3" class="accordion-body collapse"> <div class="accordion-inner"><a href="sodium-tungstate-producing-method.html">Preparation</a></div> <div class="accordion-inner"><a href="sodium-tungstate-property.html">Property</a></div> <div class="accordion-inner"><a href="sodium-tungstate-application.html">Application</a></div> <div class="accordion-inner"><a href="sodium-tungstate-chemical-reaction.html">Chemical Reaction</a></div> <div class="accordion-inner"><a href="sodium-tungstate-purification.html">Purification</a></div> <div class="accordion-inner"><a href="sodium-tungstate-tungsten-content-test.html">Tungsten Content Test</a></div> <div class="accordion-inner"><a href="sodium-tungstate-solution.html">Sodium Tungstate Solution</a></div> <div class="accordion-inner"><a href="sodium-tungstate-hydrothermal-synthesis-tungsten-trioxide.html">Hydrothermal Synthesis Tungsten Trioxide</a></div> <div class="accordion-inner"><a href="sodium-tungstate-catalyze-hydrogen-peroxide.html">Catalyze Hydrogen Peroxide</a></div> <div class="accordion-inner"><a href="medical-sodium-tungstate.html">Medical Sodium Tungstate</a></div> <div class="accordion-inner"><a href="sodium-tungstate-indicator.html">Sodium Tungstate Indicator</a></div> <div class="accordion-inner"><a href="sodium-tungstate-catalyst.html">Sodium Tungstate Catalyst</a></div> <div class="accordion-inner"><a href="sodium-tungstate-fire-proof-material.html">Fire Proof Material</a></div> <div class="accordion-inner"><a href="sodium-tungstate-sodium-molybdate-difference.html">Difference Between Sodium Molybdate</a></div> <div class="accordion-inner"><a href="sodium-tungstate-sodium-tungstate-dihydrate-difference.html">Difference Between Sodium Tungstate Dihydrate</a></div> <div class="accordion-inner"><a href="sodium-polytungstate-ultrasonic-high-speed-centrifugation.html">Sodium Polytungstate Ultrasonic High Speed Centrifugation</a></div> <div class="accordion-inner"><a href="sodium-metatungstate.html">Sodium Metatungstate</a></div> <div class="accordion-inner"><a href="sodium-polytungstate.html">Sodium Polytungstate</a></div> <div class="accordion-inner"><a href="sodium-tungstate-dihydrate.html">Sodium Tungstate Dihydrate</a></div> </div> </div> <div class="accordion-group"> <div class="accordion-heading"><strong class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapse4">Tungstic Acid >></strong></div> <div id="collapse4" class="accordion-body collapse"> <div class="accordion-inner"><a href="tungstic-acid-property.html">Property</a></div> <div class="accordion-inner"><a href="tungstic-acid-producing-method.html">Producing Method</a></div> <div class="accordion-inner"><a href="tungstic-acid-precipitation-method-testing-protein-content.html">Precipitation Method Testing Protein Content</a></div> <div class="accordion-inner"><a href="tungstate-radical.html">Tungstate Radical</a></div> <div class="accordion-inner"><a href="tungstate-radical-concentration-test.html">Tungstate Radical Concentration</a></div> <div class="accordion-inner"><a href="white-tungstic-acid.html">White Tungstic Acid</a></div> <div class="accordion-inner"><a href="white-yellow-tungstic-acid-difference.html">White Tungstic Acid and Yellow Tungstic Difference</a></div> <div class="accordion-inner"><a href="nano-tungstic-acid.html">Nano Tungstic Acid</a></div> </div> </div> <div class="accordion-group"> <div class="accordion-heading"><strong class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapse5">Ammonium Paratungstate >></strong></div> <div id="collapse5" class="accordion-body collapse"> <div class="accordion-inner"><a href="what-is-ammonium-paratungstate.html">What Is Ammonium Paratungstate</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-property.html">Property</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-producing-method.html">Producing Method</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-decomposition.html">Decomposition</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-evaporation-crystallization.html">Evaporation Crystallization</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-application.html">Application</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-national-standard.html">National Standard</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-sodium-removing.html">Removing Sodium</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-producing-ammonium-metatungstate.html">Producing Ammonium Metatungstate</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-ammonium-tungstate-difference.html">Difference Between Ammonium Tungstate</a></div> <div class="accordion-inner"><a href="ammonium-paratungstate-ask-question.html">Ammonium Paratungstate Q & A</a></div> </div> </div> <div class="accordion-group"> <div class="accordion-heading"><strong class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapse6">Ammonium Metatungstate >></strong></div> <div id="collapse6" class="accordion-body collapse"> <div class="accordion-inner"><a href="ammonium-metatungstate-hydrate.html">Ammonium Metatungstate Hydrate</a></div> <div class="accordion-inner"><a href="ammonium-metatungstate-property.html">Property</a></div> <div class="accordion-inner"><a href="ammonium-metatungstate-producing-method.html">Producing Method</a></div> <div class="accordion-inner"><a href="ammonium-metatungstate-application.html">Application</a></div> <div class="accordion-inner"><a href="ammonium-metatungstate-national-standard.html">National Standard</a></div> <div class="accordion-inner"><a href="ammonium-metatungstate-producing-tungsten-trioxide.html">Producing Tungsten Trioxide</a></div> <div class="accordion-inner"><a href="AMT-ammonium-tungstate-difference.html">Difference Between Ammonium Tungstate</a></div> <div class="accordion-inner"><a href="AMT-ammonium-metavanadate-difference.html">Difference Between Ammonium Metavanadate</a></div> <div class="accordion-inner"><a href="AMT-APT-difference.html">Difference Between Ammonium Paratungstate</a></div> <div class="accordion-inner"><a href="ammonium-metatungstate-ask-question.html">Ammonium Metatungstate Q & A</a></div> </div> </div> <div class="accordion-group"> <div class="accordion-heading"><strong class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapse7">Ammonium Tungstate >></strong></div> <div id="collapse7" class="accordion-body collapse"> <div class="accordion-inner"><a href="ammonium-tungstate.html">Ammonium Tungstate</a></div> <div class="accordion-inner"><a href="ammonium-tungstate-property.html">Property</a></div> <div class="accordion-inner"><a href="ammonium-tungstate-pentahydrate.html">Ammonium Tungstate Pentahydrate</a></div> <div class="accordion-inner"><a href="ammonium-tungstate-extraction.html">Extraction Method</a></div> <div class="accordion-inner"><a href="ammonium-tungstate-hydrochloric-acid-reaction.html">Reaction with Hydrochloric Acid</a></div> <div class="accordion-inner"><a href="ammonium-tungstate-catalyst.html">Ammonium Tungstate Catalyst</a></div> <div class="accordion-inner"><a href="ammonium-tungstate-sulfide.html">Ammonium Tungstate Sulfide</a></div> <div class="accordion-inner"><a href="metatungstate.html">Metatungstate</a></div> </div> </div> <div class="accordion-group"> <div class="accordion-heading"><strong class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapse8">Blue Tungsten Oxide >></strong></div> <div id="collapse8" class="accordion-body collapse"> <div class="accordion-inner"><a href="tungsten-blue.html">Tungsten Blue</a></div> <div class="accordion-inner"><a href="blue-tungsten-oxide-reducing-furnace.html">Reducing Furnace</a></div> <div class="accordion-inner"><a href="blue-tungsten-oxide-producing-method.html">Producing Method</a></div> <div class="accordion-inner"><a href="blue-tungsten-oxide-application.html">Application</a></div> <div class="accordion-inner"><a href="tungsten-blue-reducing-potassium-dichromate.html">Tungsten Blue Reducing Potassium Dichromate</a></div> </div> </div> <div class="accordion-group"> <div class="accordion-heading"><strong class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapse9">Tungsten Oxide>></strong></div> <div id="collapse9" class="accordion-body collapse "> <div class="accordion-inner"><A href="tungsten-oxide.html">Tungsten Oxide</A></div> <div class="accordion-inner"><a href="what-is-tungsten-oxide.html">What is Tungsten Oxide</a></div> <div class="accordion-inner"><A href="tungsten-oxide-chinatungsten.html">Tungsten Oxide Product</a></div> <div class="accordion-inner"><A href="tungsten-oxide-composite-powder.html">Tungsten Oxide Composite Powder</a></div> <div class="accordion-inner"><A href="pyrochlore-type-tungsten-oxide.html">Pyrochlore Type Tungsten Oxide</a></div> <div class="accordion-inner"><a href="tungsten-oxide-process.html">Tungsten Oxide Process</a></div> <div class="accordion-inner"><a href="tungsten-oxide-property.html">Tungsten Oxide Property</a></div> <div class="accordion-inner"><a href="tungsten-oxide-hazard.html">Tungsten Oxide Hazard</a></div> <div class="accordion-inner"><a href="tungsten-oxide-oxygen-evolution.html">Tungsten Oxide Oxygen Evolution</a></div> <div class="accordion-inner"><a href="tungsten-oxide-surface-modification.html">Tungsten Oxide Surface Modification</a></div> <div 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<p align='justify'><strong>APPEARANCE</strong><br> Gray metallic powder</p> <p align='justify'><strong>PRODUCING METHOD</strong><br> Tungsten oxide is the raw material of tungsten powder. By hydrogen reduction in four tube muffle or multi tube muffle, its grain size varies from 0.6~30um. It is divided into coarse, middle and fine grain size, the impurities content is subjected to national standard. <br><img src="pic/tungsten-powder-xiamentungsten.jpg" alt='Tungsten Powder' title='Tungsten Powder' width="270" height="160" class="img-rounded"><img style="padding-left:40px" src="pic/tungsten-powder-SEM-image .jpg" alt='Tungsten Powder SEM' title='Tungsten Powder SEM' width="270" height="160" class="img-rounded"> </p> <p align='justify'>By hydrogen reduction, using tungsten oxide or APT as raw material. The producing process is usually consisted of two steps: The first one is reducing tungsten trioxide into tungsten dioxide under 500~700℃. The second one is reducing tungsten dioxide under 700~900℃. The reduction is processed in electric tube furnace or rotary furnace. </p> <p align='justify'>Property of tungsten powder like purity, grain size are determined by reduction method. In electric tube furnace, influencing factors of reduction speed are temperature, loading capacity of tungsten trioxide in sintering boat, moving speed of sintering boat, flowing rate and moisture content of hydrogen. With the rising temperature, its grain size is getting coarse. </p> <p align='justify'>Apart from hydrogen reduction method, tungsten oxide of carbon reduction method was used in the early days. Aluminum, calcium and zinc to reduce tungsten oxide is also under study. If finer grade is required, tungsten chloride hydrogen reduction can obtain thegrain size smaller than 0.05um.<br><img src="pic/tube-hydrogen-furnace.jpg" alt='Hydrogen Reduction Furnace' title='Hydrogen Reduction Furnace' width="270" height="130" class="img-rounded"> <img style="padding-left:40px"src="pic/rotary-furnace.jpg" alt='Rotary Furnace' title='Rotary Furnace' width="270" height="130" class="img-rounded"></p> <p align='justify'><strong>PROPERTY</strong><br> Purity is of particular importance in all applications and is mainly influenced by the purity of the original APT or tungsten oxide. Typical upper limits of element concentrations in µg/g are:<br> <div class="table-responsive"> <table border="1" cellspacing="0" cellpadding="0"> <tr> <td width="54" valign="top">Element </td> <td width="31" valign="top">Co </td> <td width="28" valign="top">Cu </td> <td width="32" valign="top">Mg </td> <td width="31" valign="top">Mn </td> <td width="29" valign="top">Pb </td> <td width="31" valign="top">Al </td> <td width="34" valign="top">Fe </td> <td width="34" valign="top">Ni </td> <td width="35" valign="top">Si </td> <td width="34" valign="top">Ca </td> <td width="34" valign="top">Cr </td> <td width="34" valign="top">Sn </td> <td width="37" valign="top">Mo </td> </tr> <tr> <td width="54" valign="top">%Max</td> <td width="31" valign="top">2</td> <td width="28" valign="top">2</td> <td width="32" valign="top">2</td> <td width="31" valign="top">2</td> <td width="29" valign="top">2</td> <td width="31" valign="top">10</td> <td width="34" valign="top">10</td> <td width="34" valign="top">10</td> <td width="35" valign="top">10</td> <td width="34" valign="top">10</td> <td width="34" valign="top">10</td> <td width="34" valign="top">10</td> <td width="37" valign="top">20</td> </tr> </table></div> </p> <p align='justify'>Apart from impurities content, oxygen content should be also controlled within a certain limit. Common used grain size is 2~10um. Its apparent density, tap density and specific surface area are also changes within a certain range. Property of tungsten powder has direct effect on quality of tungsten product, especially its purity and grain size.</p> <p align='justify'>The crucial physical properties are average particle size, particle size distribution, apparent, tap and compact or green density, specific surface area, degree of agglomeration and morphology. They are to a certain extent related to each other and can be influenced between limits by the oxide properties and the reduction conditions.</p> <p align='justify'><strong>APPLICATION</strong><br> Tungsten powder is widely used in the production of weight fillers, radiation shielding fillers and induction accelerators, etc.. The thin film surface of its polymer mixture is ideally suitable for radiation protection. The large particle size makes it an ideal heavy metal filler for injection-molding applications. The unique shape and the resulted high flow ability of the particles make it suitable for applications in metal spray industry.</p> <p align='justify'>The whole palette of particle sizes finds applications in cemented carbide production. The main portion of tungsten powder is directed to that manufacture. Starting tungsten powder for ductile tungsten and powder metallurgically produced tungsten alloys covers particle sizes between 2 and 6µm. Extremely coarse powder gained by screening to separate any finer particles has excellent flow characteristics and is used in plasma spraying.</p> <p align='justify'>In summary, tungsten powder is the main material of tungsten product and tungsten alloy by powder metallurgy. It can be made into wire, rod, tube, plate and other tungsten products of different shapes. It can be mixed with other metal powders and then made into tungsten-molybdenum alloy, tungsten-rhenium alloy, tungsten-copper alloy and high density tungsten alloy. Tungsten powder being made into tungsten carbide powder can then be used to produce tungsten carbide product like drill, module and milling cutter. Besides that, tungsten powder is also used in emerging industry in recent years like anti-radiation fabric, fire-proof clothing and anti-fouling coatings.<br><img src="pic/tungsten-products.jpg" alt='Tungsten Products' title='Tungsten Products' width="600" height="200" class="img-rounded"></p> <p align='justify'><strong>CUSTOMIZATION</strong><br> Chinatungsten Online can customize our powders to specific applications. Customer specifications can be developed after technical discussions at time of inquiry.</p> <p align='justify'><strong>CERTIFICATION</strong><br> Each shipment of powder is accompanied by a standard certificate of analysis, which includes F.S.S.S average particle size, apparent density, purity and impurities content. </p> <p align='justify'><strong>PACKING</strong><br> Regular packing considered of protecting environment is with double inner aluminum foil of 50kgs, 100kgs or 200kgs net each, in iron drums. Other customized packing is also accepted. </p> <p id="bodytext1">If you have any other question or inquiry of tungsten powder, please contact us through the following methods:<br /> Email:<a href="mailto:sales@chinatungsten.com;sales@ctia.com.cn;sales@tungsten.com.cn;sales@xiamentungsten.com">sales@chinatungsten.com</a><br> Tel.: +86 592 5129696 / 86 592 5129595 &emsp;&emsp; Fax: +86 592 5129797</p> </div> </div> </div> </div>  <div id="link"> <table border="0" cellspacing="0" cellpadding="0"> <tr> <td class="ftdl" align="right" valign="top">Tungsten Information</td> <td class="ftdr"><a href="http://www.chinatungsten.com/information-bank/index.htm" target="_blank">Tungsten Information Bank </a> | <a href="http://news.chinatungsten.com/en/tungsten-price" target="_blank">Tungsten Price</a> | <a href="http://www.chinatungsten.com/catalog/index.html" target="_blank">Tungsten Catalogs</a> | <a href="http://www.chinatungsten.com/dictionary-of-tungsten/index.htm" target="_blank">Tungsten Dictionary</a><br /> <a href="http://www.ctia.com.cn/en/" target="_blank">Tungsten News</a> | <a href="http://v.chinatungsten.com/en/" target="_blank">Tungsten Videoes Bank</a> | <a href="http://picture.chinatungsten.com/" target="_blank">Tungsten Pictures' Bank</a> | <a href="http://www.tungsten-directory.com/" target="_blank">Tungsten Directory</a></td> </tr> <tr> <td height="82" align="right" valign="top" class="ftdl">Chinatungsten Group</td> <td class="ftdr"><a href="http://www.tungsten-carbide.com.cn/" target="_blank">Tungsten Carbide</a> | <a href="http://www.tungsten-jewellery.com" target="_blank">Tungsten Carbide Jewellery</a> | <a href="http://www.china-tungsten.biz/" target="_blank">Tungsten Alloy Manufacturer</a> | <a href="http://www.molybdenum.com.cn/" target="_blank">Molybdenum</a><br /> <a href="http://www.tungsten-molybdenum-sapphire.com/" target="_blank">Tungsten Molybdenum Sapphire</a> | <a href="http://www.tungsten-alloy.com/" target="_blank">Tungsten Alloy Supplier</a> | <a href="http://www.tungsten-oxide.com/" target="_blank">Tungsten Oxide</a> | <a href="http://www.xiamentungsten.com/" target="_blank">Xiamen Tungsten</a><br /> <a href="http://www.chinadart.com/" target="_blank">Tungsten Dart</a> | <a href="http://www.tungsten.com.cn/" target="_blank">Tungsten</a> | <a href="http://www.tungsten-wire.com.cn/" target="_blank">Tungsten Wire</a> | <a href="http://www.tungsten-heater.com.cn/" target="_blank">Tungsten Heater</a> | <a href="http://www.tungsten-bar.com/" target="_blank">Tungsten Bar</a><br /> <a href="http://www.dartchina.com/" target="_blank">Tungsten Dart Shop</a> | <a href="http://www.buckingbar.com.cn/" target="_blank">Bucking Bar</a> | <a href="http://www.paper-weight.cn/" target="_blank">Golden Tungsten</a> | <a href="http://www.fishing-sinkers.com/" target="_blank">Tungsten Fishing Sinker</a> </td> </tr> </table> </div>  <div class="modal-footer"> <div class="footer1">Address: 3F, No.25 WH Rd., Xiamen Software Park Ⅱ, FJ 361008,China</div> <div class="footer1">Phone:+86-592-5129696,+86-592-5129595;Email:<a href="mailto:sales@chinatungsten.com;sales@ctia.com.cn;sales@tungsten.com.cn;sales@xiamentungsten.com">sales@chinatungsten.com</a> <br /> Certified by MIIT:<a href="http://www.chinatungsten.com/certificate.html">闽B2-20090025</a>　<a href="http://www.chinatungsten.com/chinatungsten-iso.html" rel="nofollow">ISO 9001:2015</a> <br /> Copyright©1997 - <span > <script type="text/javascript"> year = new Date(); update = year.getFullYear(); document.write(update); </script> </span> ChinaTungsten  <script type="text/javascript" src="https://js.users.51.la/21496481.js"></script><br /> </div> </div> </div> <script type="text/javascript" src="js/jquery-1.7.2.min.js"></script> <script type="text/javascript" src="js/bootstrap.min.js"></script>  <script type="text/javascript"> var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-49588296-1']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 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