GRW

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Tungsten

 

Vietnam Origin

 

  • APT (Ammonium Paratungstate)
  • BTO (Blue Tungsten Oxide)
  • TTO/YTO (Tungsten Trioxide/Yellow Tungsten Oxide)
  • Tungsten Metal Powder
  • Tungsten Carbide Powder
  • Cast Tungsten Carbide W2C

 

WC)

·         Formula: WC

·         Appearance: Fine grey metal powder

·         Packing: In iron drum with inside plastic bags of 100kg or 200kg net each

 

Imputiry Content (ppm max.)

Grade

Fe

Mo

Al

Si

Ca

Mn

Mg

Cr

Ni

K+Na

Standard WC≥99.8%

300

50

10

30

40

10

10

100

80

20

Typical WC≥99.98%

70

20

3

20

20

3

3

70

35

20

 

Specification

 

Type

Fsss (μm)

Total carbon (%)

Free carbon (%)

0.8

0.8-1.0

6.13+/-0.05

≤0.05

10

1.01-1.5

15

1.51-2.0

20

2.01-2.5

25

2.51-3.0

30

3.01-4.0

40

4.01-5.0

50

5.01-7.0

70

7.01-15.0

150

15.01-25.0

 

NOTE: Any particular requirement to the products can be discussed

 

 

 

 

 

Ammonium Paratungstate (APT)

·         Formula: 5(NH4)2O.12WO3.5H2O

·         Appearance: Free flowing white crystalline powder without any other cast or foreign matter

·         Packing: In bags of 100kg, 200kg, 1000kg net each

 

Grade

Standard

Typical

WO3 (%min)

88.5

88.93

Impurity Content (ppm max)

Al

5

3

Fe

10

6

S

7

5

As

10

7

P

7

5

Mo

20

10

Ca

10

6

Mg

7

3

K

10

6

Na

10

5

Si

10

6

Cu

3

1

Mn

10

3

Ni

7

3

Pb

1

0.5

Bi

1

0.5

Sn

1

0.5

Sb

8

3

V

10

3

Ti

10

3

Cr

10

3

Co

10

3

Cd

-

0.5

Fsss (35-46μm)

Scott Density: 1.8-2.6 g/cm3

Ignition loss: max. 11.5%

 

 

NOTE:

·         K is not regarded as impurity

·         Material of 40-46 micron is mainly used for producing tungsten bar for drawing wire

·         Any particular requirement to the products can be discussed

 

 

 

 

 

Tungsten Trioxide/Yellow Tungsten Oxide (TTO/YTO)

·         Formula: WO3

·         Appearance: Free flowing light yellow crystalline powder

·         Packing: In bags of 100kg, 200kg and 1000kg net each

 

Grade

Standard

Typical

WO3 (%min)

99.95

99.95

Impurity Content (ppm max.)

Al

5

3

Fe

10

6

S

7

5

As

10

7

P

7

5

Mo

20

12

Ca

10

6

Mg

7

3

K

10

7

Na

10

5

Si

10

6

Cu

3

1

Mn

10

3

Ni

7

3

Pb

1

0.5

Bi

1

0.5

Sn

2

0.5

Sb

5

3

Ti

10

3

V

10

3

Cr

10

3

Co

10

3

Cd

-

0.5

Fsss (8-16μm)

Scott Density: 2.0-3.0 g/cm3

Ignition loss: max. 0.5%

Chlorde Residue: max. 0.06%

 

NOTE: Any particular requirement to the products can be discussed.

 

 

 

 

Blue Tungsten Oxide (BTO)

·         Formula: WO2.8-2.97

·         Appearance: Free flowing dark blue crystalline powder

·         Packing: In bags of 100kg, 200kg and 1000kg net each

 

Grade

Standard

Typical

WO2.8-2.97 (% min.)

99.95

99.95

Impurity Content (ppm max)

Al

5

3

Fe

10

6

S

7

5

As

10

7

P

7

5

Mo

20

12

Ca

10

6

Mg

7

3

K

10

7

Na

10

5

Si

10

6

Cu

3

1

Mn

10

3

Ni

7

3

Pb

1

0.5

Bi

1

0.5

Sn

2

0.5

Sb

5

3

Ti

10

3

V

10

3

Cr

10

3

Co

10

3

Cd

-

0.5

Fsss (8-16μm)

Scott Density: 2.0-3.0 g/cm3

Ignition loss: max. 0.5%

Chlorde Residue: max. 0.06%

 

NOTE:Any particular requirement to the products can be discussed.

 

 

 

 

 

Tungsten Metal Powder (WMP)

·         Formula: W

·         Appearance: Steel grey metal powder

·         Packing: In iron drum with inside plastic bags of 100kg or 200kg net each

 

Grade

Standard

Typical

W (%min)

99.95

99.99

Impurity Content (ppm max)

Fe

50

10

Si

20

6

Ca

20

6

Al

10

3

Mn

10

3

Mg

10

3

Ni

20

6

Sb

5

3

Cr

10

10

As

10

7

Pb

1

0.5

Bi

1

0.5

Sn

10

0.5

Cu

5

1

Mo

50

6

K

20

10

Na

10

10

S

10

10

P

10

5

C

50

-

 

Specification

 

Type

Fsss (μm)

Scott Density (g/cm3)

Oxygen Content Max (%)

07

0.6-0.8

1.4-2.2

0.5

09

0.81-1.0

1.7-2.5

0.4

10

1.01-1.5

2.0-2.8

0.3

15

1.51-2.0

2.2-3.0

0.3

20

2.01-3.0

2.6-3.5

0.25

30

3.01-4.0

3.2-4.2

0.25

40

4.01-5.5

3.8-4.8

0.25

55

5.51-7.0

4.0-5.2

0.2

70

7.01-15

4.2-5.5

0.2

150

15.1-25

4.5-6.5

0.1

 

NOTE: Any particular requirement to the products can be discussed.

 

 

 

 

Cast Tungsten Carbide Powder (W2C)

·         Formula: W2C

·         Appearance: grey metal powder

·         Density: 16.5g/cm3

·         Packing: In drum

 

Type

Grain Size

Mesh

μm

GZ5-10f

-5~+10

4000-2000

GZ10-20f

-10~+20

2000-850

GZ20-30f

-20~+30

850-600

GZ30-40f

-30~+40

600-425

GZ40-60f

-40~+60

425-250

GZ60-80f

-60~+80

250-180

GZ80-100f

-80~+100

180-140

GZ100-200f

-100~+200

140-75

GZ200-400f

-200~+400

75-34

 

 

 

Elements

Standard

Typical

W

95-96

95.65

Total Carbon

3.8-4.0

3.89

Free Carbon

≤0.08

0.01

Fe

≤0.5

0.026

Cr

≤0.2

0.06

V

≤0.2

0.02