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钽粉


                    

EB Melted Ta powder
                                                                 
 
1.      Chemical Composition(Based on ASTM B708-01)
 
Max.values(u g/g)
Impurities
3N5
4N
4N5
5N
C
60
60
60
60
N
60
60
60
50
O
1100
800
800
800
H
100
100
100
50
*Nb
400
100
20
5
*W
150
80
10
3
*Mo
50
30
10
2
Ti
10
5
1
1
Zr
10
5
1
1
Hf
5
5
1
1
V
5
5
1
1
Ni
30
5
5
3
Cr
30
5
5
3
Fe
30
10
10
5
Al
5
1
1
1
Mg
5
1
1
1
Ca
5
1
1
1
Pb
5
1
1
1
Zn
5
1
1
1
K
3
1
1
1
Na
3
1
1
1
Cu
5
1
1
1
Mn
5
1
1
1
Sn
5
1
1
1
Co
5
1
1
1
Th
0.005
0.005
0.005
0.005
U
0.005
0.005
0.005
0.005
PS:* Purity is based on total metals(excluding C,H,N and O)
 
           2. Physical Properties
                2.1  Screen size:All material be sieved through 325 mesh (ASTM E 11)
                2.2  Mean particle size:Fisher sub sieve sizer(ASTM B330)  10.0-20.0 um
                2.3  Scott bulk density(ASTM B329):5.0-8.0g/cm3


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