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Crystalline Tungsten Powder
Of the highest quality and purity, the specially prepared crystalline tungsten powders produced at Buffalo Tungsten are large particle size tungsten powders beyond the range of the Fisher Sub-Sieve Sizer and are therefore classified by mesh size. The Crystalline Tungsten Powders have applications such as matrix and spray powders.
TYPICAL PHYSICAL PROPERTIES
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TYPE
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DESCRIPTION
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APPARENT DENSITY1(g/in3)
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MESH ANALYSIS
|
|
Mesh
|
WT%
|
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C100
|
-325
|
110 - 140
|
+325
-325
|
0 - 10
>90
|
|
C110
|
-200/+325
|
105 - 135
|
+200
-325
|
0
0 -10
|
|
C120
|
-60/+325
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95 - 125
|
+60
-325
|
0
0 - 10
|
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CUSTOMER SPECIFIC MESH RANGES AVAILABLE2
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TYPICAL TRACE ELEMENT CHEMICAL ANALYSIS
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METALLIC IMPURITIES (WT%)
|
|
Element
|
Max
|
Typical
|
Element
|
Max
|
Typical
|
|
Al
|
0.003
|
<0.001
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Mo
|
0.020
|
0.005
|
|
Co
|
0.005
|
<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
|
|
Cu
|
0.005
|
<0.001
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Si
|
0.002
|
<0.001
|
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Fe
|
0.020
|
0.004
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Sn
|
0.002
|
<0.001
|
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NON_METALLIC IMPURITIES (WT%)
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Carbon
|
<0.008
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Oxygen (Loss on Reduction)
|
<0.070
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W (WT %) > 99.8 Excluding Gases
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|
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