Our company buys: Tungsten Powder, ПВ-1, ПВ-2 Grades

Application:

  • Production of sintered and strained intermediate products and goods (fillet, sheet, rod, electrode, wire, melting pot,
  • Pattering target, melt goods containing molybdenum),
  • Electrical connections production (containing copper),
  • Production of composites containing copper, nickel and other steels  (pseudo alloys,  hard alloys),
  • Pyrotechnic products directed action
  • As a compound for piezoelectric transformers and so on.
  • Wolfram powder chemical compound
  • Chemical compound as to ТУ14-22-143-2000    

Admixtures content, mcg/g (ppm) max:

Na

Al 

Si 

K  

  Ca

V  

Fe  

   Ni      

   As

Mo

Cd 

  Sb   

C

ПВ1 

basis

100

10 

20 

40

20 

60 

50

30

200

  2 

ПВ2 

basis

150

10

30 

50

50  

80

50

50

400

2

Typical tungsten content in the powders of ПВ type is 99,986 — 99,987 %

Tungsten mass content is determined by subtracting from the powder composition the sum of all metal contaminants, controlled by mass spectrometry with inductively coupled plasma ICP-MS (ICP-MS). Gas forming impurities C, O, N, H, S, F, Cl are not taken into consideration when calculating tungsten content.

Average particles size is calculated using Kozeny-Carmen method –the powder layer air is measured using the device of the ПСХ-8А type:

powder ПВ1 –0,8 -1,7 micron,

powder ПВ2 –3,8 - 6,0 micron

Mass content of the particles bigger than 4 micron in ПВ2 is 40% max (volume).

Powder tap density ПВ2 is 3,0-5,5 g/cm3.

Note:

  1. Powder is tested by adding zinc stearate 1,5%
  2. Powder processing properties are controlled from time to time. Information in the table is for reference.

Producing Countries: Russia, China