What are the differences in the labeling and particle size labeling of superhard powder in different countries?

July 31, 2018

Different countries and important enterprises in the world have their own standards and codes for diamond. Please refer to the comparison table:

 

Grit size comparison table

China

GB/T6460-1996

ISO&JIS B 4130:1998

FEPA

(D-Diamond -CBN)

ANSI

B74.16-1971

DIN848-1988

(D- Diamond -CBN)

Γ OCT9206-80

Mesh

Size

Size

Range

Grit

Mesh

Size

Size

Range

Grit

Mesh

Size

Mesh

Size

Size

Range

Grit

Size

Range

Grit

Size

Range

40/45

425/355

426

——

425/355

D/B426

425/355

40/45

425/300

D/B426

425/355

400/315

400/315

45/50

355/300

356

——

355/300

D/B356

355/300

D/B356

355/300

50/60

300/250

301

50/60

300/250

D/B301

300/250

50/60

300/250

D/B301

300/250

315/200

315/200

60/70

250/212

251

——

250/212

D/B251

250/212

60/80

250/180

D/B251

250/212

250/200

250/200

70/80

212/180

213

——

212/180

D/B213

212/180

D/B213

212/180

200/160

200/160

80/100

180/150

181

80/100

180/150

D/B181

180/150

80/100

180/150

D/B181

180/150

100/120

150/125

151

100/120

150/125

D/B151

150/125

100/120

150/125

D/B151

150/125

160/125

160/125

120/140

125/106

126

120/140

125/106

D/B126

125/106

120/140

125/106

D/B126

125/106

125/100

125/100

140/170

106/90

107

140/170

106/90

D/B107

106/90

140/170

106/90

D/B107

106/90

100/80

100/80

170/200

90/75

91

170/200

90/75

D/B91

90/75

170/200

90/75

D/B91

90/75

200/230

75/63

76

200/230

75/63

D/B76

75/63

200/230

75/63

D/B76

75/63

80/63

80/63

230/270

63/53

64

230/270

63/53

D/B64

63/53

230/270

63/53

D/B64

63/53

63/50

63/50

270/325

53/45

54

270/325

53/45

D/B54

53/45

270/325

53/45

D/B54

53/45

50/40

50/40

325/400

45/38

46

325/400

45/38

D/B46

45/38

325/400

45/38

D/B46

45/38

 Micropowder Mesh Size and Comparison table

China GB6966.2-86

JIS6002-63

FEPA

ANSI

B74.20-1971

DIN 848-65

B.S.1987

Γ OCT9206-80

G.E.CO.

De Beers Co.

Grit (Size Range)

Grit

Size Range

Grit

Size Range

Grit

Size Range

Grit

Size Range

Grit (Size Range)

Grit (Size Range)

Grit (Size Range)

Grit (Size Range)

36-54

400

37/43

M63

42-84

60

54-80

D45

40/50

40-60

60/40

36-54

30-60

22-36

500

34/28

M40

27-53

45

36-54

D35

32/40

27-40

40/28

22-36

20-40

20-30

600

28/24

M25

16-34

30

22-36

D25

25/32

18-27

28/20

20-30

15-30

12-22

700

24/20

M16

10-22

15

12-22

D20

25/40

12-18

20/14

12-22

——

10-20

800

20/16

——

——

——

——

D20A

25/30

——

——

10-20

10-20

——

1000

16/13

——

——

——

——

D20B

30/40

——

14/10

10-15

8-16

8-12

1200

13/10

——

——

9

8-12

D15

15/25

8-12

10/7

6-12

6-12

6-12

1500

10/8

M10

6-14

——

——

D15A

10/15

——

——

5-10

——

5-10

2000

8/6

M6.3

4-9

6

4-9

D15B

15/20

——

——

4-8

4-8

4-8

2500

6/5

——

——

——

——

D15C

20/25

4-8

7/5

3-6

3-6

3-6

3000

5/4

——

——

——

——

D7

5/10

——

——

——

——

2.5-5

4000

4/3

M4.0

2.5-5.5

3

2.5-5.5

D3

2/5

——

5/3

——

——

2-4

5000

3/2

M2.5

1.5-3.5

——

——

——

——

2-4

3/2

2-4

2-4

1.5-3

——

——

M1.6

1.0-2.5

1

1.5-3.5

——

——

——

——

1-3

1.5-3

0-2

——

——

——

——

1/2

1.0-2.5

——

——

——

2/1

0-2

0-2

0.5-1.5

8000

2/1

M1.0

0.5-1.5

D1

1/2

1-2

——

1-2

0.75-1.5

0.5-1.0

——

——

——

——

——

——

D0.7

0.5/1

——

——

——

0.5-1

0-1.0

15000

1/0

——

——

——

——

——

——

0-1

1/0

0-1

0-1

0-0.5

——

——

——

——

——

——

D0.25

≤0.5

——

——

0-0.5

0.05