Comparison Chart - Shenzhen Kaitexin Industry Co., Ltd.

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COMPARISON CHART

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Product List
	Mass Finishing
	Sand Blasting Machines
	Sand Blasting Media
	Abrasives
	Centrifugal Casting Machines
	Machines for Locks and Keys Industry
	Others

Comparison of Grit Size
Grit No.	Nominal Size Range (um)
Grit No.	China GB2477- 83	JIS R6001-1987	ANSI (74)	ISO(86) FEPA(84)
4	5600 ~ 4750	------	5600 ~ 4750	5600 ~ 4750
5	4750 ~ 4000	------	4750 ~ 4000	4750 ~ 4000
6	4000 ~ 3350	------	4000 ~ 3360	4000 ~ 3350
7	3350 ~ 2800	------	3360 ~ 2830	3350 ~ 2800
8	2800 ~ 2360	2800 ~ 2360	2830 ~ 2380	2800 ~ 2360
10	2360 ~ 2000	2360 ~ 2000	2380 ~ 2000	2360 ~ 2000
12	2000 ~ 1700	2000 ~ 2000	2000 ~ 1680	2000 ~ 1700
14	1700 ~ 1400	1700 ~ 1400	1680 ~ 1410	1700 ~ 1400
16	1400 ~ 1180	1400 ~ 1180	1410 ~ 1190	1400 ~ 1180
20	1180 ~ 1000	1180 ~1000	1190 ~ 1000	1180 ~ 1000
22	1000 ~ 850	-------	------	1000 ~ 850
24	850 ~ 710	850 ~ 710	841 ~ 707	850 ~ 710
30	710 ~ 600	710 ~ 600	707 ~ 595	710 ~ 600
36	600 ~ 500	600 ~ 500	595 ~ 500	600 ~ 500
40	500 ~ 425	-------	-------	500 ~ 425
46	425 ~ 355	425 ~ 355	420 ~ 354	425 ~ 355
54	355 ~ 300	355 ~ 300	354 ~ 297	355 ~ 300
60	300 ~ 250	300 ~ 250	297 ~ 250	300 ~ 250
70	250 ~ 212	250 ~ 212	250 ~ 210	250 ~ 212
80	212 ~ 180	212 ~ 180	210 ~ 177	212 ~ 180
90	180 ~ 150	180 ~ 150	177 ~ 149	180 ~ 150
100	150 ~ 125	150 ~ 125	149 ~ 125	150 ~ 125
120	125 ~ 106	125 ~ 106	125 ~ 105	125 ~ 106
150	106 ~ 75	106 ~ 75	105 ~ 74	106 ~ 75
180	90 ~ 63	90 ~ 63	88 ~ 63	90 ~ 63
220	75 ~ 53	75 ~ 53	74 ~ 53	75 ~ 53
240	75 ~ 53	---------	74 ~ 53	-------

Size Distribution of Grain F10-F240
Grit No.	The Coarsest Grains		Coarse Grains		Normal Grains		Mixed Grains		Fine Grains
Grit No.	Sieve No.	Above sieve (weight % ) max	Sieve No.	Above Sieve (weight % ) max	Sieve No.	Above Sieve (weight % ) min.	Sieve No.	Above sieves (weight % ) min.	Sieve No.	Under Sieve (weight % ) max.
F10	6	0	8	20	10	45	10 12	70	14	3
F12	7	0	10	20	12	45	12 14	70	16	3
F14	8	0	12	20	14	45	14 16	70	18	3
F16	10	0	14	20	16	45	16 18	70	20	3
F20	12	0	16	20	18	45	18 20	70	25	3
F22	14	0	18	20	20	45	20 25	70	30	3
F24	16	0	20	25	25	45	25 30	65	35	3
F30	18	0	25	25	30	45	30 35	65	40	3
F36	20	0	30	25	35	45	35 40	65	45	3
F40	25	0	35	30	40	40	40 45	65	50	3
F46	30	0	40	30	45	40	45 50	65	60	3
F54	35	0	45	30	50	40	50 60	65	70	3
F60	40	0	50	30	60	40	60 70	65	80	3
F70	45	0	60	25	70	40	70 80	65	100	3
F80	50	0	70	25	80	40	80 100	65	120	3
F90	60	0	80	20	100	40	100 120	65	140	3
F100	70	0	100	20	120	40	120 140	65	200	3
F120	80	0	120	20	140	40	140 170	65	230	3
F150	100	0	140	15	170 200	40	170 200 230	65	325	3
F180	120	0	170	15	200 230	40	200 230 270	65	----	----
F220	140	0	200	15	230 270	40	230 270 325	60	----	----
F240	170	0	200	5	230 270	8	230 270 325	38	----	----

Compariosn of Mircron Powers

China
GB 2477-83

JIS

ANSI(77)

DIN(70)

FEPA(84)

ISO(77)

Grit No.

Size range
(µm)

Grit No.

ds50 value
(µm)

Grit No.

ds50 value
(µm)

Grit No.

ds50 value
(µm)

Grit No.

ds50 value (µm)

grit No.

ds50 value
(µm)

Standard werte der Mikro-F-Reihe

Sedigraph 5000D

240

60.0±4.0

P240

58.5±2.0

280

52.0±3.0

P280

52.2±2.0

W63

63~50

320

46.0±2.5

240

53.5~50

OS53

53±3.0

F230/53

53±3.0

50.0±3.0

P320

46.2±1.5

W50

50~40

360

40.0±2.0

OS45

44.5±2.0

F240/45

44.5±2.0

42.0±2.0

P360

40.5±1.5

400

34.0±2.0

280

44~40.5

P400

35.0±1.5

W40

40~28

500

28.0±2.0

320

36~32.5

OS37

36.5±1.5

F280/37

36.5±1.5

34.5±1.5

P500

30.2±1.5

600

24.0±1.5

360

28.8~25.8

OS29

29.2±1.5

F320/29

29.2±1.5

27.7±1.5

P600

25.8±1.0

W28

38~20

700

21.0±1.3

400

23.6~20.6

OS23

22.8±1.5

F360/23

22.8±1.5

21.6±1.5

P800

21.8±1.0

800

18.0±1.0

500

19.7~16.7

OS17

17.3±1.0

F400/17

17.3±1.0

16.5±1.0

P1000

18.3±1.0

W20

20~14

1000

15.5±1.0

600

16~13

OS13

12.8±1.0

F500/13

12.8±1.0

12.3±1.0

P1200

15.3±1.0

W14

14~10

1200

13.0±1.0

1500

10.5±1.0

800

12.3~9.8

OS9

9.3±1.0

F600/9

9.3±1.0

9.0±1.0

W10

10~7

2000

8.5±0.7

1000

9.3~6.8

7~5

2500

7.0±0.7

OS7

6.5±1.0

F800/7

6.5±1.0

6.3±1.0

5~3.5

3000

5.7±0.5

1200

6.5~4.5

OS5

4.5±0.8

F1000/5

4.5±0.8

OS3

3.1±0.5

F1200/3

3.1±0.5

for general purposes

for bonded abrasives

for coated abrasives

Physical Characteristics of Abrasives
Item	Brown Fused Aumina	White Fused Alumina	Black Silicon Carbide	Green silicon Carbide
Basic Mineral	α-Al2O3	α-Al2O3	α-SiC	α-SiC
Crystal System	Hexagonal	Hexagonal	Hexagonal	Hexagonal
Crystal Color	Brown	White	Black	Green
Density	>3.90g/cm³	>3.90g/cm³	>3.12g/cm³	>3.18g/cm³
Bulk Density	1.68-1.95g/cm³	1.75-1.95g/cm³	1.45-1.56g/cm³	1.45-1.56g/cm³
Mohs Hardness	9	9	9.15	9.15
Micro Hardness	2000-2200kg/cm²	2000-2300kg/cm²	3100-3280kg/cm²	3280-3400kg/cm²
Grinding Ability (Compared With Diamond as one)	0.10	0.12	0.25	0.28
Linear Expansion Coefficient (at 900°c, in 10^-6 /°c )	7.6	8.3	4.4	4.6
Electrical Resistivity	10¹⁴-10¹⁶Wcm	10¹⁴-10¹⁶Wcm	3x10⁵-3x10⁷Wcm	3x10⁵-3x10⁷Wcm