Character:
Dark grey powder
Electric mirror photo
Applications：
 For cemented carbide,making niobium bars and powder
   
Impurity content ：
Grade
FNbC-1
FNbC-2
Main content %
99.6
-
Impurity content (≤,%)
T.C
11.0 ± 0.4
11.5 ± 0.5
F.C
0.15
0.10
N
0.02
0.05
Ta
0.25
0.3
W
0.10
-
Mo
0.1
-
Ti
0.02
0.01
Si
0.01
0.01
Mn
0.05
0.01
Na
0.008
-
Fe
0.1
0.15
Co
0.1
-
Cr
0.1
-
Sn
0.01
-
K
0.008
-
Ca
0.01
-
Mesh (μ m)
-100
-80
 
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