tungsten

 
AnalysisElementsSpecificationsTypical
 
 Tungsten (W)99.9 % min.*Balance
 Aluminium (Al)25 ppm max.< 10 ppm
 Calcium (Ca)20 ppm max.< 10 ppm
 Cobalt (Co)100 ppm max.20 ppm
 Chromium (Cr)75 ppm max.< 20 ppm
 Copper (Cu)10 ppm max.1 ppm
 Iron (Fe)100 ppm max.20 ppm
 Molybdenum (Mo)200 ppm max.50 ppm
 Natrium (Na)15 ppm max.10 ppm
 Nickel (Ni)15 ppm max.10 ppm
 Silicon (Si)30 ppm max.15 ppm
 
 * Oxygen (O) content excluded. The oxygen level may vary between 0.02 % and 0.40%, depending on the particles sizes.

Particle SizeFSSS0.5 – 0.9 µm +/- 0.1 µm 
  1.0 – 1.3 µm +/- 0.2 µm 
  1.4 – 1.7 µm +/- 0.2 µm 
  1.8 – 2.7 µm +/- 0.3 µm 
  2.8 – 3.9 µm +/- 0.3 µm 
  4.0 – 6.0 µm +/- 0.3 µm 
 
 Other particle sizes are available upon request.

PackagingDrums or Pails of 50 kg net  
 Other packaging upon request  

WC 4 µm

Secondary carbides formation in cobalt based matrix (Picture Dr. A.Fels)

Sintered WC with diamonds in cobalt based matrix (Picture Dr. A.Fels)

Analysis Elements Specifications Typical
Tungsten (W) 99.7 % min.* Balance
Carbon (C) Total 6.13 % +/- 0.05 % 6.12 %
Carbon (C) Free 0.06 % +/- 0.02 % 0.02 %
Aluminium (Al) 25 ppm max. < 20 ppm
Calcium (Ca) 50 ppm max. 16 ppm
Cobalt (Co) 100 ppm max. 20 ppm
Chromium (Cr) 75 ppm max. 16 ppm
Copper (Cu) 15 ppm max. < 5 ppm
Iron (Fe) 250 ppm max. 70 ppm
Molybdenum (Mo) 250 ppm max. 24 ppm
Natrium (Na) 20 ppm max. < 5 ppm
Nickel (Ni) 50 ppm max. 5 ppm
Silicon (Si) 50 ppm max. 20 ppm
* Oxygen (O) content excluded. The oxygen level may vary between 0.02 % and 0.20%, depending on the particles sizes

Particle Size FSSS 0.9 – 1.1 µm +/- 0.1 µm
1.2 – 1.7 µm +/- 0.2 µm
1.8 – 3.2 µm +/- 0.2 µm
3.3 – 6.3 µm +/- 0.3 µm
Other particle sizes are available upon request.

Packaging Drums or Pails of 50 kg net
Other packaging upon request
PRE-ALLOYED WC/CO POWDER

Pre-alloyed Powder

Sintered Structure


Analysis Elements Specifications
 
Tungsten (W) Balance
Cobalt (Co) 12 or 15 or 20 %

Particle Size 0 – 100 µm
0 – 200 µm
0 – 300 µm
 
Other grain sizes upon request.

Hardness HV10 (Iso 3878) 1250

Coercity Hc 165 oested
READY MIXED POWDERS
Analysis Elements Specifications
 
Tungsten Carbide (WC)
10% 20% 30% 40% 50%
Cobalt (Co)
90% 80% 70% 60% 50%
 
Other mixture grades available upon request.

Packaging Drums or Pails of 50 kg net
Other packaging upon request

Fused tungsten carbide powders are specially treated, controled and screened. Each powder is formulated to achieve an
optimum value in hardness, abrasion and erosion as well as
impact resistance. In addition and due to excellent
wetting properties, fused tungsten carbide powders allow to achieve superior infiltration absorption values.
These powders are used for manufacturing diamond tools such as: saw blades, core bits, drill bits and other
infiltrated components. Among the main industrial applications, fused tungsten carbide powders are used for cutting
abrasives materials such as asphalt and concrete
. Another famous application being the geological surveys and,
particularly, the drilling oil-wells.

AnalysisElementsSpecificationsTypical
 
 Tungsten (W)BalanceBalance
 Carbon (C) Total3.90 – 4.20 %3.98 %
 Carbon (C) Free0.10 % max.0.08 %
 Iron (Fe)0.40 % max.0.22 %
 Oxygen (O)0.10 % max.< 0.06 %

Particle Size– 200 Mesh0 – 75 µm 
 – 150 + 200 Mesh75 – 106 µm 
 – 100 + 150 Mesh106 – 150 µm 
 
 Other grain sizes upon request.

PackagingDrums or Pails of 25 and 50 kg  
 Other packaging upon request