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Tungsten Powder

Usuage: Mainly used to produce WC powder or high-proportion products such as cell phone vibrator,electrode, electrical contact materials, etc.

Performance

1. impurity content 

Grade

FW-1

FW-2

No less than(%) for tungsten content

99.95

99.95

No more than(%) for impurity content

Pb

0.0001

0.0003

Bi

0.0001

0.0003

Sn

0.0001

0.0003

Sb

0.0003

0.0005

As

0.0007

0.001

Fe

0.004

0.006

Ni

0.0015

0.0025

Cu

0.0001

0.0003

Al

0.0005

0.001

Si

0.001

0.0015

Ca

0.001

0.0015

Mg

0.0003

0.0007

Mo

0.002

0.003

P

0.0007

0.001

C

0.003

0.005

2. requirements for controlling contents of oxygen and ferrum 

Part no.

Fsss medium grain size(um)

O%

Fe%

merchandise

merchandise

FW-010

(0.90-1.10)±0.1

0.2

0.005

FW-015

(1.3-1.70)±0.2

0.12

0.005

FW-020

(1.5-2.50)±0.2

0.08

0.005

FW-030

(2.5-3.50)±0.2

0.06

0.005

FW-040

(3.5-4.50)±0.3

0.05

0.005

FW-050

(4.5-5.50)±0.3

0.05

0.005

FW-060

(5-7.0)±0.5

0.05

0.005

FW-080

(7-9.0)±1.0

0.05

0.005

FW-100

(9-11.0)±1.0

0.05

0.03

FW-130

(11-15.0)±1.5

0.05

0.03

FW-175

(15-20.0)±2.0

0.05

0.03

FW-250

(20-30.0)±2.0

0.05

0.03

3. Fsss grain size could be made as your requirements 

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