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Tungsten powder

Tungsten powder

Introduction:


AEM tungsten powder process method used hydrogen reduction of tungsten trioxide or secondary ammonium tungstate. The process is generally divided into two stages, the first stage is temperatures of 500-700℃, tungsten trioxide reduction. The next step is temperatures of 700-900℃, tungsten oxide reduction of tungsten powder. Reduction reaction in tubular furnace or ratary furnace.
Tungsten powder's quality depends on the reduction process, especially of purity, particle size, particle size compositon,etc.

The cast tungsten carbide powder is silver-gray with a polygonal shape. This kind of powder also can be used for making hard alloys, mainly by spray welding and impregnation. A large quantities raw materials are required for high-speed cutting tools, kiln structural materials, jet engine parts, cermet materials, and resistance heating elements. AEM tungsten carbide is created using metal tungsten powder and carbon. First use the same quantity of tungsten powder that particle size around Fsss 3-5um and carbon black into the ball mill for dry mixing.Then put them into the furnace of the temperature of 1550-1650℃. Add flow hydrogen. Continue to react with high temperature to form the WC.

AEM provides tungsten powder and tungsten carbide powders in high quality with great density. Please contact us if you didn't find the powders you need. The powder sizes can be customized by your requests.

Tungsten Metal powder


The property of tungsten powder is black-gray cubic crystals, which can be used in high specific gravity alloys, electrical contact materials, catalysts, pigments, solid lubricants and high specific gravity liquids.

Main uses of Tungsten Powder:
Main used in hard alloys,diamond tools,powder metallurgy industry.
Chemical industry.
Used in high temperature alloy material.
Raw materials of W-Re electric thermocouples.
Used in increase of weight material.

Grade Product Name Chemical Composition (wt%) Particle Size
W-1 Tungsten powder W:≥ 99.5%
Other: ≤ 0.5%
 1-3 um
 -325 mesh
customized sizes avaliable

Tungsten Ceramics Powder


The tungsten carbide powder is dark gray, which is the main raw material for the production of cemented carbide and is widely used due to its high hardness and wear resistance.

AEM supplies different kinds of tungsten carbide powder;
ultrafin tungsten carbide powder
coarse tungsten carbide powder
cast tungsten carbide powder
spray tungsten carbide powder
cast spherical tungsten carbide powder
macrocrystalline tungsten carbide powder

Tungsten Carbide Applications;
Main used in hard alloys,diamond tools,powder metallurgy industry.
Chemical industry.
Used in high temperature alloy material.
Raw materials of W-Re electric thermocouples.
Used in increase of weight material.

Grade Product Name Chemical Composition (wt%) Particle Size Apparent Density (g/cm3)      Hardness Temperature
W-2 Ordinary Tungsten Carbide powder Total C:≥ 5.95-6.14
Free C: ≤0.08
O: ≤0.25
Fe: ≤0.25
Chlorinated residue: ≤0.25
Si: ≤0.025
Ca: ≤0.01
Na: ≤0.02
 -200 mesh
 -300 mesh
customized sizes avaliable
4.0-4.6    -     -
W-3 Cast Tungsten Carbide powder Total C:≥ 3.8-4.0
Other: ≤ 0.5%
 -200 mesh
 -300 mesh
customized sizes avaliable
      -    -     -
W-4 Tungsten Carbide Composition powder WC: Bal
Ni: 12
 -140 mesh + 325 mesh       - HRC 62 ≤ 400℃
W-5 Tungsten Carbide Composition powder WC: Bal
Ni: 10
 -140 mesh + 325 mesh       - HRC 62 ≤ 400℃
W-6 WC12Co WC: Bal
Ni: 12
 -45um+ 15 um
 -53um+ 20 um
 -30um + 5um
      - HV0.3 1100-1400 ≤ 540℃
W-7 WC17Co WC: Bal
Ni: 27
 -45um+ 15 um
 -53um+ 20 um
 -30um + 5um
      - HV0.3 1100-1400 ≤ 540℃
W-8 WC25Co WC: Bal
Ni: 25
 -45um+ 15 um
 -53um+ 20 um
 -30um + 5um
      - HV0.3 1100-1400 ≤ 550℃
W-9 WC10Co4Cr WC: Bal
Co: 10
Cr: 4
 -45um+ 15 um
 -53um+ 20 um
 -30um + 5um
      - HV0.3 1100-1400 ≤ 540℃

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