粒度   
GRIT

化學成分%
Chemical content

粒度

D0≤

D3≤

D50

D94≥

SiC≥

F.C≤

Fe2O3≤

#240

100

90

57±3.0

40.5

97.5

0.4

0.3

#280

90

80

48±3.0

33.5

97.5

0.4

0.3

#320

80

70

40±2.5

27.5

97.5

0.4

0.3

#360

70

60

35±2.0

23.5

97.5

0.4

0.3

#400

60

50

30±2.0

20.5

97.5

0.4

0.3

#500

50

40

25±1.5

16.5

97.5

0.4

0.3

#600

43

35

20±1.5

13.5

97.5

0.4

0.3

#700

38

30

17±1.3

11.5

97.5

0.4

0.3

#800

33

25

14±1.0

9.5

97.5

0.4

0.3

#1000

28

20

11.5±1.0

7.5

97.5

0.4

0.3

#1200

24

17

9.5±0.8

6.0

97.5

0.4

0.3

#1500

20

14

8.0±0.6

5.0

97.5

0.4

0.3

#2000

17

12

6.7±0.6

4.0

97.5

0.4

0.3

#2500

14

20

5.5±0.5

3.0

97.5

0.4

0.3

#3000

11

8

4.0±0.5

2.0

97.5

0.4

0.3

#4000

9

6

3.0±0.4

1.5

94.00

1.00

0.3