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High Density Tungsten Powder
Types SR and ST tungsten powders manufactured by Buffalo Tungsten are the highest apparent density tungsten powder available. These powders are ideal for weight filler material and radiation shielding applications.
TYPICAL PHYSICAL PROPERTIES
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TYPE
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AVG. PARTICLE SIZE FSSS (um)
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APPARENT DENSITY (g/in3)
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TAP DENSITY (g/cc)
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STANDARD SCREENING
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SR
|
8.0 - 15.0
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140 - 165
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10.0 - 12.0
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-100 Mesh
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ST
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20.0 - 40.0
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150 - 165
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10.0 - 12.0
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-60 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
|
0.003
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<0.001
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Mo
|
0.010
|
0.002
|
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Co
|
0.005
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<0.001
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Na
|
0.010
|
0.002
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Cr
|
0.020
|
0.008
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Ni
|
0.020
|
0.008
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Cu
|
0.002
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<0.001
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Si
|
0.005
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<0.001
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Fe
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0.020
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0.008
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Sn
|
0.001
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<0.001
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<0.001 NON-METALLIC IMPURITIES (WT %)
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Carbon
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<0.010
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Oxygen (Loss on Reduction)
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<0.350
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<0.001 W (WT %) > 99.8 Excluding Gases
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