Coarse Tungsten Powder
Introduction
Coarse Tungsten Powder is primarily intended for applications utilizing non-thermal powder consolidation technologies (tungsten– polymer/elastomer, deformable metal binder, etc.) Special powder processing services available for narrow distribution, increased apparent density, and/or high flowability Provides coarse particle size with low alkali metal content-ideal for thermal spray. Widely used for lead-free ammunition and moldable radiation shielding products. Useful as a pour-in high density filling material for irregular shaped cavities to add weight or radiation attenuation.
TYPICAL PHYSICAL PROPERTIES OF COARSE TUNGSTEN POWDER
Type |
Avg. Particle Size FSSS (microns) |
Apparent Density(g/in3) |
Standard Screening |
C40 |
10.00-19.99 |
60 - 100 |
-100 Mesh |
C60 |
20.00-39.99 |
70 - 120 |
-60 Mesh |
C80 |
>40.00 |
90 - 130 |
-60 Mesh |
Typical Trace Element Chemical Analysis
METALLIC IMPURITIES (WT%) |
||||||
Element |
Max |
Typical |
Element |
Max |
Typical |
|
Al |
0.003 |
<0.001 |
Mo |
0.020 |
0.005 |
|
Co |
0.005 |
<0.001 |
Na |
0.010 |
0.005 |
|
Cr |
0.020 |
0.005 |
Ni |
0.020 |
0.005 |
|
Cu |
0.005 |
<0.001 |
Si |
0.002 |
<0.001 |
|
Fe |
0.020 |
0.002 |
Sn |
0.002 |
<0.001 |
|
NON-METALLIC IMPURITIES (WT%) |
||||||
Type |
Carbon |
Oxygen (Loss on Reduction) |
||||
C40 |
<0.008 |
<0.070 |
||||
C60 |
<0.008 |
<0.070 |
||||
C80 |
<0.008 |
<0.070 |
||||
TUNGSTEN (WT%) > 99.8% Excluding Gases |
||||||
ANALYTICAL REPORTS
A Certificate of Analysis (COA) accompanies each shipment of tungsten carbide powder. We prepare each COA to include the following: Average Particle Size (Fisher Sub-Sieve ASTM B-330) Apparent Density (Scott Volumeter ASTM B-329) Particle Size Distribution (Photelometer ASTM B-430, Sedigraph, or Malvern Mastersizer) Chemical Impurity Analysis Packing:In iron drums lined with double plastic bags of 50 or 100 kgs net each. Note: Any particular requirements to the products can be discussed.
