Tantalum Niobium Concentrate

Specifications

Grade

(Ta2O5+Nb2O5) (%min)

Ta2O5 (%min)

1

2

3

45

45

40

29

26

22

Packing : In cloth bags with mid emulsion bags, outside plastic or gunny bags of 25 or 50 kgs net each.

Common Tantalum Oxide

Specifications

Symbol

Ta2O5(%min)

Chemical Composition (max%)

Nb

Fe

Si

Ti

Ni

Cr

Al

Mn

Cu

W

Mo Pb Sn Al+Ka+Li F

L.O.I

Grade-1

99.9

0.003

0.004

0.004

0.001

0.004

0.001

0.002

0.01

0.004

0.003 0.003 0.002 0.002 0.005 0.05

0.2

Grade-2

 99.8 0.05 0.01 0.02 0.005 0.01 0.004 0.004 0.004 0.01 0.005 0.003 0.002 0.002 0.005 0.1 0.2

Appearance:White power.Size : Grade-1:0.5-2µ, Grade-2:0.5-105µ.
Uses : The Grade-1 Oxide can be used as raw materials for making tantalum powder,                      The Grade-2 Oxide can be used as raw materials for making tantalum bars, etc.
Packing : In iron drums of less than 40 kgs net each with inner sealed double plastic bags  of  25 kgs    net each.

Common Niobium Oxide

Specifications

Symbol

NB2O3(%min)

Chemical Composition (%,max)

Ta

Fe

Si

Ti

Ni

Cr

Al

Mn

Grade-1

99.9

0.1

0,005

0.005

0.001

0.005

0.003

0.001

0.001

Grade-2

99.8 0.1 0.01 0.01 0.005 0.01 0.003 0.005 0.005

Grade-3(ECA)

99.5 0.1 0.02 0.02 0.005 0.01 0.005 0.005 0.005
Grade-Metallurgical 99.0 0.1 0.02 0.02 0.005 0.02 0.005 0.005 0.005

　

Chemical Composition (%,max)

Cu

W

Mo

Pb

Sn

P

S

F

L.O.I

 Fsss Size

0.001

0,003

0,003

0.002

0.002

0.01

0.01

0.1

0.3 0.5-2µ
0.005 0,005 0,005 0.002 0.002 0.01 0.01 0.15 0.4 0.5-1µ
0.005 0,005 0,005 0.002 0.002 0.01 0.01 0.15 0.4 0.5-1µ
0.005 0,005 0,005 0.003 0.003 　 　 0.3 0.5 0.5-2µ

Appearance : White powder
Uses : The Grade-1/2 can be used as raw materials to produce Niobium metal and Niobium carbide, Grade-3(ECA) for ceramic capacitor, filter and sensor ect.Grade-Metallurgical for the additive to produce the alloying agent. 
Packing : In iron drums with inner sealed double plastic bags of 25 kgs net each.

High Pure Tantalum Oxide

Specifications

Symbol

Ta2O5(%min)

Impurities(ppm,max)

Nb

Fe

B

Si

Ti

Ni

Cr

Al

Grade-1

99.999

15

3

2

7

1

2

2

1

Grade-2

99.99

30 5 　 10 3 3 3 5

Impurities(ppm,max)

L.O.I1
Mn Cu

W

Mo

Pb

Sn

K

Na

F
1 2

3

3

3

1

2

2

30

0.1%
3 3 5 5 3 3 2 2 50 0.2%

Appearance : White powder:Size-60mesh
Uses : Raw materials for lithium tantalate crystal and additive for special optical glass.
Packing : In iron drums of less than 50 kgs net each with inner sealed double plastic bags of 25kgs net each.

High Pure niobium oxide

Specifications

Symbol

Nb2O5(%min)

Impurities (ppm，max)

Ta

Fe

B

Bi

Si

Ti

Ni

Cr

Grade-1

99.999

15

2

2

1

7

1

2

2

Grade-2

99.99

20 5 　 13 3 3 3
Grade-3 99.95 100 10 　 　 50 10 10 10

Impurities (ppm，max)

L.O.I1
Al Mn

Cu

W

Mo

Pb

Sn

K

Na

F

3 1

3

3

3

3

3

2

2

30

0.1%
5 3 3 5 5 3 3 2 2 50 0.2%
10 5 10 10 10 5 5 　 　 150 0.4%

Appearance : White powder: Size-60 mesh.
Uses : Raw materials for lithium Niobate crystal and additive for special optical glass.
Packing : In iron drums of  25 kgs net each with inner sealed double plastic bags of 25 kgs net each.

Tantalum Carbide

Specifications

Symbol

Ta(Nb)C (%min)

    C  (%min)

Chemical Composition (% max.)

Fisher Size (µm)

Nb

Fe

Si

Al

Ti

O

N

C游

FTaC-2

99

6.2

1.0

0.15

0.02

0.01

0.02

0.25

0.05

0.15

≤3

FTaC-3

99

6.25 5.0 0.2 0.025 0.02 0.02 0.30 0.05 0.2 ≤3

Uses : For additive in hard alloys.
Packing : In wooden cases of less than 40 kgs net each with inner sealed double-cover plastic bottles of 5 kgs net each.

Niobiu Carbide

Specifications

Symbol

Nb(Ta)C  (%min)

Chemical Compositions (% max.)

Fisher Size(µm)

O 

N

C total

C free

Fe

Si

Al

Ti

FNC-1

99.0

0.25

0.05

11.0

0.15

0.15

0.02

0.02

0.02

≤3.0

Uses : for additive in hard alloys.
Packing : In wooden cases of less than 40kgs net each with inner sealed double-cover plastic bottles of less than 5kgs net each.

Metallurgical-grade Tantalum Powder

Specifications

Symbol

Ta%(min)

Chemical Compositions (% max.)

Size

Fisher Size

O

H

N

C

Fe

Ni

Si

Ti

Nb

W

Mo

 Mn Cr

Grade-1

99.9

0.20

0.005

0.01

0.015

0.005

0.005

0.015

0.005

0.01

0.003

0.002

0.001 0.002

-150 mesh

1-5 µm

Appearance : Deep grey powder.
Application : For metallurgical and fabricating raw materials ect.
Packing : In iron drums of  40Kgs net each with inner sealed double plastic bags of 20 kgs net each.

Metallurgical-grade Niobium Powder

Specifications

Symbol

Nb+Ta %(min)

Chemical Compositions (% max.)

Size

O

H

N

C

Fe

Ni

Ti

 Ta W

Mo

Mn

Cr

 Cu P s

Grade-3

99.9

0.5

0.005

0.1

0.04

0.05

0.02

0.01

0.5 0.02

0.02

0.02

0.02

0.01 0.01 0.01

-100 mesh

Appearance : Deep grey powder.
Application : For metallurgical and fabricating raw materials ect.
Packing : In iron drums of  40Kgs net each with inner sealed double plastic bags of 20 kgs net each.

Potassium Tantalfluoride

Specifications

Symbol

Ta (%)

Chemical Compositions (ppm max.)

Nb

Fe

Si

Ni

Cr

Cu

Ti

W

Ta2O5
(Free)

KTF-1

45.6~46.6

30

30

30

10

10

10

10

30

1000

KTF-2

 45.6~46.6 30 30 50 30 30 20 20 30 1500

Appearance : white crytalline grain.
Uses : Raw materials for making tantalum powder.
Packing : In iron drums of less than 40 Kgs net each with inner sealed double plastic bags of 20 kgs net each.

Tantalum Bar

Specifications

Symbol

  Ta   %(min)

Chemical Compositions (% max.)

O

H

N

C

Fe

Ni

Ti

Nb

 W Mo Mn Cr Cu

FTa-1

99.9

0.3

0.005

0.1

0.04

0.01

0.008

0.005

0.01

0.005 0.005 0.005 0.005 0.005

Appearance : Deep-grey color, Size :14×14×500mm
Application : For metallurgical and fabricating raw materials, ect.
Packing : In iron drums of 50 Kgs net ,  with inner sealed double plastic bags .

Niobium Bar

Specifications

Symbol

 Na+Ta %(min)

Chemical Compositions (ppm max.)

O

H

N

C

Fe

Ni

Ti

Ta

 W Mo Mn Cr Cu P S

M-3

99.9

0.5

0.005

0.1

0.04

0.05

0.02

0.01

0.5

0.02 0.02 0.02 0.02 0.01 0.01 0.01

Appearance : Deep-grey color, Size :16×16×500mm
Application : For metallurgical and fabricating raw materials, ect.
Packing : In iron drums of 50 Kgs net ,  with inner sealed double plastic bags .

Capacitor-grade Tantalum Powder

1.Chemical Compositions (ppm max.)

Symbol O N Al C Cr Fe Mo Mn Nb Ni Si Ti W K Na
FTa16-220 2600 150 10 100 50 60 20 5 50 50 50 5 30 50 50
FTa16-200 2400 120 10 100 50 50 20 5 50 50 50 5 30 50 50
FTa25-180 2400 120 10 100 50 50 20 5 50 50 50 5 30 35 35
FTa25-150 2400 120 10 100 50 50 20 5 50 50 50 5 30 35 35
FTa25-120 2400 120 10 100 50 50 20 5 50 50 50 5 30 20 20
FTa35-80 2300 100 10 90 50 50 20 5 50 50 50 5 30 20 20
FTa40-42 1800 70 10 70 40 50 20 5 50 50 50 5 20 20 20

FTa40-35

1600

70

10

70

40

50

 20 5 50 50 50 5 20 20 20

2.Physical Properties

Symbol Pressed Density (g/cm3) Bulk Density (g/cm3) Fisher Size (µm)
FTa16-220 4.5-5.5 1.5-2.5 1.5-3.0
FTa16-200 4.5-5.5 1.5-2.5 1.5-3.0
FTa25-180 4.5-5.5 1.5-2.5 1.5-3.0
FTa25-150 4.5-5.5 1.5-3.5 1.5-3.0
FTa25-120 5.0-6.0 2.0-3.5 3.0-3.5
FTa35-80 5.5-6.5 2.0-3.5 4.0-6.0
FTa40-42 6.0-7.5 2.0-3.5 5.0-8.0

FTa40-35

 6.0-8.0 3.0-4.0 7.0-9.5

3.Electrical Properties

Symbol Test Condition Index
Voltage(V) Weight (g/B) Pressed Density (g/cm3) Sintering (℃/min) Specific Capacitance (μfv/g) Leakage Current (μA/μFV) Dissipation factor (tgδ%) Breakdown Voltoge (V) Volume Contraction(%)
FTa16-220 70 0.5 4.5 1550/30 22000 5×10-4 20 110 　
FTa16-200 70 0.5 4.5 1550/30 22000 5×10-4 20 110 　
FTa25-180 100 1.0 4.5 1600/30 18000 5×10-4 15 140 　
FTa25-150 100 1.0 4.5 1600/30 15000 5×10-4 15 160 　
FTa25-120 100 1.0 5.0 1600/30 12000 5×10-4 15 160 　
FTa35-80 160 1.0 5.5 1700/30 8000 6×10-4 12 190 18
FTa40-42 200 2.0 6.5 1900/30 4200 6×10-4 8 240 20