Tungsten, molybdenum and heatspreader materials

Powders

Tungsten Powder

Tungsten powder

Tungsten powder is manufactured under strict quality control as raw materials of high density composites, diamond tools, metallizing paste, sintered parts of tungsten, etc.

B30

▲B30

●Standard tungsten powder
Type Particle size(μm) W(%) O(%) Fe(%) Mo(%) NVR*(%)
A20 0.5~0.6 ≧99.9 ≦0.60 ≦0.02 ≦0.02 ≦0.01
A30 0.6~0.8 ≧99.9 ≦0.60 ≦0.02 ≦0.02 ≦0.01
B10 1.0~1.3 ≧99.9 ≦0.40 ≦0.02 ≦0.02 ≦0.01
B20 1.0~1.5 ≧99.9 ≦0.20 ≦0.02 ≦0.02 ≦0.01
B30 1.4~1.7 ≧99.9 ≦0.15 ≦0.02 ≦0.02 ≦0.01
C10 1.7~2.0 ≧99.9 ≦0.15 ≦0.02 ≦0.02 ≦0.01
C20 1.9~2.2 ≧99.9 ≦0.15 ≦0.02 ≦0.02 ≦0.01
C30 2.1~2.5 ≧99.9 ≦0.15 ≦0.02 ≦0.02 ≦0.01
C40 2.3~2.8 ≧99.9 ≦0.15 ≦0.02 ≦0.02 ≦0.01
C50 2.8~3.4 ≧99.9 ≦0.15 ≦0.02 ≦0.02 ≦0.01
C60 3.1~3.6 ≧99.9 ≦0.15 ≦0.02 ≦0.02 ≦0.01
D10 3.6~4.4 ≧99.9 ≦0.10 ≦0.02 ≦0.02 ≦0.01
D20 4.5~7.5 ≧99.9 ≦0.10 ≦0.02 ≦0.02 ≦0.01
D100 7.6~12.0 ≧99.9 ≦0.10 ≦0.02 ≦0.02 ≦0.01
D150 12.1~17.0 ≧99.9 ≦0.10 ≦0.02 ≦0.02 ≦0.01
Coarse grains 23~28 ≧99.9 ≦0.10 ≦0.02 ≦0.02 ≦0.01

“Particle size” is the average particle diameter according to the Fischer method. “NVR” is the part remaining after heating in hydrogen chloride air current.
“W” is the part remaining after subtracting Fe, Mo and NVR from 100.
*NVR: Non Volatile Residue by Chlorination

High-purity tungsten powder

High-purity tungsten powder that contains very few radioactive elements and alkali metals is manufactured by our excellent purifying technology and strict environmental control.

5N-W

▲5N-W

●4N-W
Type W(%) Na(ppm) K(ppm)
4N-W ≧99.99 ≦10 ≦10
Typical ≧99.99 5 3

※Particle sizes in a range of 1.0 – 5.0μm are available upon request.

●5N-W
Type W(%) Na(ppm) K(ppm) U(ppb) Th(ppb)
5N-W ≧99.999 ≦1 ≦1 ≦1 ≦1
Typical ≧99.999 0.08 0.04 0.2 0.5

※Particle sizes in a range of 1.0 – 5.0μm are available upon request.

Tungsten trioxide powder

High-purity tungsten trioxide powder is manufactured by chemical refinement to tungsten material. It is used for optical applications, high-permittivity ceramics and other new industrial materials.

●High-purity tungsten trioxide powder
Type Particle size(μm) WO3(%) NVR(%) Fe(%) Mo(%)
A2-WO3 7~12 ≧99.9 ≦0.010 ≦0.001 ≦0.010
C3-WO3 15~20 ≧99.9 ≦0.010 ≦0.001 ≦0.010
F1-WO3 0.5~1.2 ≧99.9 ≦0.010 ≦0.002 ≦0.010

Inquiry by email