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钨粉 tungsten powder
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钨粉

钨粉

 Tungsten powder

Grade: FW-1

Appearance: Light grey or dark grey powder Main composition: W ≥99.95%. (Calculated by the subtractive method)

 

   Impurity content, %

Elements

Impurity content

Fe

≤0.0050

Al

≤0.0010

Si

≤0.0020

Mg

≤0.0010

Mn

≤0.0010

Ni

≤0.0030

As

≤0.0015

Pb

≤0.0001

Bi

≤0.0001

Sn

≤0.0003

Sb

≤0.0010

Ca

≤0.0020

Mo

≤0.0050

K+Na

≤0.0030

P

≤0.0010

C

≤0.0050


    Type, range of average particle size and oxygen content 

Type

Range of average size (µm)

O%

Type

Range of average size (µm)

O%

04

BET: ≤0.10

≤0.60

40

4.01~5.00

≤0.10

06

BET: ≤0.15

≤0.50

50

5.01~7.00

≤0.10

08

0.80~1.00

≤0.40

70

7.01~10.00

≤0.10

10

1.01~1.50

≤0.25

100

10.01~15.00

≤0.10

15

1.51~2.00

≤0.20

150

15.01~20.00

≤0.10

20

2.01~2.50

≤0.15

200

20.01~30.00

≤0.10

25

2.51~3.00

≤0.15

300

>30.00

≤0.10

30

3.01~4.00

≤0.15

 

 

 

 

Packing: Inner double plastic bags, outer steel drum, 25kg or 50kg net weight each drum.

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