Character:
 Dark grey powder.
Applications：
 Mainly used as alloying agent for cemented carbide.
Product series:

Grade

80：20

60：40

90：10

70：30

Main chemical composition,%

Ta

71±1.5

56±1.3

84.4±1.5

65.6±1.5

Nb

20.6±1.0

35±1.3

8.85±1.0

26.6±1.2

T.C

7.2±0.5

8.1±0.5

6.75±0.5

7.8±0.5

/F.C

≤0.15

≤ 0.15

≤ 0.15

≤ 0.15

Impurity content

  

Impurity content % MAX.

CO

0.15

0.15

0.15

0.15

MO

0.1

0.1

0.1

0.1

Si

0.02

0.02

0.01

0.01

Fe

0.15

0.15

0.15

0.15

Ni

0.04

0.04

0.04

0.04

K

0.008

0.008

0.008

0.008

Na

0.008

0.008

0.008

0.008

Mn

0.05

0.05

0.05

0.05

Sn

0.01

0.01

0.01

0.01

Ca

0.01
0.01
0.01
0.01

AI

0.015
0.015
0.015

0.015

N

0.20
0.20
0.20
0.20

S

0.03
0.03
0.03
0.03

O

0.20
0.20
0.20
0.20

Ti

0.5
0.5
0.5
0.5

W

0.5
0.5
0.20
0.5

Cr

0.1
0.1
0.05
0.1

Fsss(μ m)

 2.0～5.0  
2.0—5.0
2.0～5.0
2.0～5.0
 
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