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Home Catalog Synthetic Diamond and CBN Granularity number & Basal granule size
Granularity number & Basal granule size PDF Print E-mail
Written by YingLong   
Tuesday, 10 October 2006 20:22

2、The Grit-Number and Granule-size of Synthetic Diamond or CBN(Cubic Boron Nitride):
    (1).Original criterion of Industry Department(JB2808-79)

Grit-Number

Size(μ)

Grit-Number

Size (μ)

36#

500～400

W40

40～28

46#

400～315

W28

28～20

60#

315～250

W20

20～14

70#

250～200

W14

14～10

80#

200～160

W10

10～7

100#

160～125

W7

7～5

120#

125～100

W5

5～3.5

150#

100～80

W3.5

3.5～2.5

180#

80～63

W2.5

2.5～1.5

240#

63～50

W1.5

1.5～0.5

280#

50～40

W1.0

1.0 following

 

 

W0.5

0.5 following

    (2).Criterion of China(GB6405-86)

Grit-Number

Size(μ)

Grit-Number

Size(μ)

30/35

600～500

0-0.5

0～0.5

35/40

500～425

0-1

0～1

40/45

425～355

0.5-1

0.5～1

45/50

355～300

0.5-1.5

0.5～1.5

50/60

300～250

0-2

0～2

60/70

250～212

1.5-3

1.5～3

70/80

212～180

2-4

2～4

80/100

180～150

2.5-5

2.5～5

100/120

150～125

3-6

3～6

120/140

125～106

4-8

4～8

140/170

106～90

5-10

5～10

170/200

90～75

6-12

6～12

200/230

75～63

8-12

8～12

230/270

63～53

10-20

10～20

270/325

53～45

12-22

12～22

325/400

45～38

20-30

20～30

Wider range

22-36

22～36

30/40

600～425

36-54

36～54

40/50

425～300

 

 

60/80

250～180

 
Last Updated on Friday, 17 September 2010 17:00
 

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