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Fine Tungsten Powder
The high quality and high purity fine tungsten powders produced at Buffalo Tungsten 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
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TYPE
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AVG. PARTICLE SIZE FSSS (microns)
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APPARENT DENSITY1 (g/in3)
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STANDARD SCREENING2
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C3
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0.60-0.99
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20 - 40
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-100 Mesh
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C5
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1.00-1.39
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25 - 50
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-100 Mesh
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C6
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1.40-1.99
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30 - 60
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-100 Mesh
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C8
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2.00-3.99
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35 - 70
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-200 Mesh
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C10
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4.00-5.99
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40 - 80
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-200 Mesh
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C20
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6.00-9.99
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50 - 90
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-200 Mesh
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TYPICAL TRACE ELEMENT CHEMICAL ANALYSIS
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METALLIC IMPURITIES (WT%)
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Element
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Max
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Typical
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Element
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Max
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Typical
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Al
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0.003
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<0.001
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Mo
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0.020
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0.005
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Co
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0.005
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<0.001
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Na
|
0.010
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0.005
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Cr
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0.020
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0.005
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Ni
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0.020
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0.005
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Cu
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0.005
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<0.001
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Si
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0.002
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<0.001
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Fe
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0.020
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0.002
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Sn
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0.002
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<0.001
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NON-METALLIC IMPURITIES (WT%)
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Type
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Carbon
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Oxygen (Loss on Reduction)
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C40
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<0.008
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<0.070
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C60
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<0.008
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<0.070
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C80
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<0.008
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<0.070
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TUNGSTEN (WT%) > 99.8% Excluding Gases
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