The high quality and high purity fine tungsten powders are typically greater than 99.95% tungsten purity with average particle sizes up to 10 microns. These powders are used in powder metallurgy applications such as electrical contacts, heavy metal alloys, electronic heat sinks, mining tools and fabricated tungsten rod/bar.
TYPICAL PHYSICAL PROPERTIES
TYPE |
AVG. PARTICLE SIZE FSSS (microns) |
APPARENT DENSITY1
(g/in3) |
STANDARD SCREENING2 |
C3 |
0.60-0.99 |
20 - 40 |
-100 Mesh |
C5 |
1.00-1.39 |
25 - 50 |
-100 Mesh |
C6 |
1.40-1.99 |
30 - 60 |
-100 Mesh |
C8 |
2.00-3.99 |
35 - 70 |
-200 Mesh |
C10 |
4.00-5.99 |
40 - 80 |
-200 Mesh |
C20 |
6.00-9.99 |
50 - 90 |
-200 Mesh |
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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 |
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ANALYTICAL REPORTS
A Certificate of Analysis (COA) accompanies each shipment of tungsten carbide powder. BTI’s own Powder Metallurgy QC Laboratory prepares 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
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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.
If you have any interest in our products, please feel free to contact us by email: sales@chinatungsten.com or by telephone:
+86 592 5129696.
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