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High Purity products

 

 

High Purity Ammonium Para Tungstate Powder

 
Mark Chemical Composition
% ppm
Ig.loss Ca Cr Fe Mo P Si
APW-4N 10-12 ≦10 ≦10 ≦10 ≦10 ≦10 ≦10

 

 

High Purity Tungsten Tri-oxide Powder

 
Mark Chemical Composition
ppm
C Ca Cr Fe Mo P Si
WO3-4N ≦10 ≦10 ≦10 ≦10 ≦10 ≦10 ≦10

 

 

High Purity Tungsten Powder

 
Mark Particle Size(μm) Chemical Composition
% ppm
O C Ca Cr Fe Mo P Si
W-4N 3.0〜5.0 ≦0.1 ≦30 ≦10 ≦10 ≦10 ≦10 ≦10 ≦10
W-5N 3.0〜5.0 ≦0.1 ≦30 ≦1 ≦1 ≦1 ≦10 ≦1 ≦1
The ingredient guarantee of W-4N Al,As,Co,Cu,K,Mg,Mn,Na,Ni,Ti: 5ppm or less of each
The ingredient guarantee of W-5N Al,As,Co,Cu,Mg,Mn,Ni,Ti: 1ppm or less of each,
Na,K:0.5 ppm or less of each, U,Th:0.5 ppb or less of each

 

Notes

Remarks

(1) Particle size is determined by Sub-Sieve-Sizer.

(2) Tungsten Powder is classified in products required export license.