Ganzhou Tejing Tungsten and Molybdenum Co.,Ltd

◆ (Formula):5(NH₄)₂O.12WO₃.5H₂O.
◆ Appearance:Free flowing white crystal line powder with no any other cast or foreign matter.
◆ （Ignition Loss):11.5%max
◆ Fsss: 35-46 micron.
◆ （Scott Density):1.8-2.6 G/CM³.
◆ Packing:In iron drum with inside plastic bags of 100kg or 200kg net each.

Remarks1:APT-0 is high purity matetial for special uses.
Remarks2:Material of 40-46micron is mainly used for producing tungsten bar for drawing wire.
Remarks3:Any partiqular reprirement to the products can be discussed.

Grade		APT-0	APT-1	APT-2
WO₃（%min）		88.5	88.5	88.5
Impurity Content （%max）	AL	0.0005	0.001	0.0002
	FE	0.001	0.001	0.0005
	S	0.0007	0.001	0.0005
	AS	0.001	0.001	0.0002
	P	0.0007	0.001	0.001
	MO	0.002	0.005	0.0005
	CA	0.001	0.001	0.0002
	MG	0.0007	0.001	0.0001
	K	0.001	0.0015	0.0002
	NA	0.001	0.0015	0.0002
	SI	0.001	0.001	0.001
	CU	0.0003	0.0005	0.00005
	MN	0.001	0.001	0.00005
	NI	0.0007	0.001	0.00005
	PB	0.0001	0.0001	0.00005
	BI	0.0001	0.0001	0.00005
	SN	0.0001	0.0003	0.0001
	SB	0.0008	0.001	0.0001
	V	0.001	0.001	0.0001
	TI	0.001	0.001	0.0001
	CR	0.001	0.001	0.0001
	CO	0.001	0.001	0.00005
Fsss：35-46 UM		SCOTT DENSITY: 1.8-2.6 G/CM³

◆ Chemical Composition(%)：

W

Fe

Mo

other impurities

≥99.95

≤0.002

≤0.003

≤0.001

Note:K is not regarded as impurity.

◆ Diameter Range：

CLASS IFICATION

minimal diameter

maximal diameter

TUNGSTEN ROD

swaged

3.0

16.0

straightened

0.40

3.0

GROUND TUNGSTEN ROD

1.0

14.0

◆ Diameter Tolerance：

Diameter

Black tungsten rod

Ground tungsten rod

diameter tolerance

roundness

diameter tolerance

roundness

0.40<d≤0.80

±2

2

-

-

0.80<d≤3.0

±2

2

±0.03

0.03

3.0<d≤6.5

±2

2

±0.05

0.05

6.5<d≤14

±2

2

±0.08

0.08