Silicon Carbide

Forma crystallis

Alpha SiC systema hexagonale

Natura chemica

leve acidum

Reactionem cum acida

Actio superficiei exigua cum acido hydrofluorico

Reactionem cum Alkalies

Impetum caliditas ab algallis et ferreis xide

Oxidation-reductio effectus

Incipit oxydatum tardius ad DCCC ^o C. nulla reductione

Densitas vera (g/cm ³)

3.20

duritia

Knoop (kg/cm ²)

2200-250

Moh's

9.5

Color

Niger

Color cum eiaculatione globorum

Niger

De compositione punctum

2200^o C *

Max Usable temperatus

1540^o C in aere

Imprimis caloris (cal/g. ^o C)

0^o C *

500^o C *

1000^o C *

0.14

0.28

0.13

Coefficiens conductivity scelerisque (cal/cm ².sec. ^o C)

600^o C *

800^o C *

1000^o C *

0.080

0.061

0.0510

Electrical resistivity (Wcm)

25^o C *

100^o C *

400^o C *

800^o C *

1400^o C *

50

46.4

26.6

7.8

0.65

Expansion coefficiens liner (x10 ^-6)

25^o C-D ^o C

25^o C-1000 ^oC

25^o C-MD ^o C *

25^o C-2000 ^o C

25^o C MMD ^o C *

4.63

5.12

5.48

5.77

5.94

Grit

10#- 90#

100# -180#

220#- 220#

230#- 400 #

500#-1200#

Sic

98.5 min

98.0 min

97.0 min

96.0 min

93.0 min

FC

0.2 max

0.3 max

0.3 max

0.4 max

0.4 max

Fe ₂O₃

0.6 max

0.8 max

1.2 max

1.5 max

1.7 max

Crit No.

Micron

Crit No.

Micron

Crit No.

Micron

10

2360 ~ 2000

30

710 ~ 600

80

212 ~ 180

12

MM~ MDCC

36

600 ~ 500

90

180 ~ 150

14

1700 ~ 1400

40

500 ~ 425

100

150 ~ 125

16

1400 ~ 1180

46

425 ~ 355

120

125 ~ 106

20

1180 ~M

54

355 ~ 300

150

106 ~ 75

22

1000 ~ 850

60

300 ~ 250

180

90 ~ 63

24

850 ~ 710

70

250 ~ 212

220

75 ~ 53

China GB 2477-83

JIS

FEPA(84) / DIN(70)

ISO(77)

Crit No.

Normalis magnitudinis range (μm)

Crit No.

ds50 valorem (μm)

Crit No.

ds50 valorem (μm)

Crit No.

ds50 valorem (μm)

Latin werte der Mikro-F-Reihe

Sedigraphum 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

F230/53

53±3.0

50.0±3.0

P320

46.2±1.5

W50

50 - 40

360

40.0±2.0

F240/45

44.5±2.0

42.0±2.0

P360

40.5±1.5

400

34.0±2.0

P400

35.0±1.5

W40

40 - 28

500

28.0±2.0

F280/37

36.5±1.5

34.5±1.5

P500

30.2±1.5

600

24.0±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

F360/23

22.8±1.5

21.6±1.5

P800

21.8±1.0

800

18.0±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

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

F600/9

9.3±1.0

9.0±1.0

W10

10 - 7

2000

8.5±0.7

W7

7 - 5

2500

7.0±0.7

F800/7

6.5±1.0

6.3±1.0

W5

5 - 3.5

3000

5.7±0.5

F1000/5

4.5±0.8

4.5±0.8

F1200/3

3.1±0.5

3.1±0.5

ad communem usum

ad communem usum

nam religata abrasives

quia iactaret abrasives

Compositio chemica

Type

Sic min

FC max

Fe ₂O ₃ max

Magnitudo mm

TN98

98.0

1.0

0.5

50-0
13-0
10-0
5-0
0.5-0

100#-0
220#-0

TN97

97.0

1.5

0.8

TN95

95.0

2.5

1.0

TN90

90.0

3.0

2.5

TN88

88.0

3.5

3.0

TN85

85.0

5.0

3.5

TN60

60.0

12.0

3.5

TN50

50.0

15.0

3.5

Instrumenta Vitrificata        

Lapping          

Resinoidum instrumenta        

Blasting          

ut tincidunt            

Tractatus dejectio  

Tumbling            

gerunt resistentia    

auto-revolvens      

Refractory        

Lapping compositis

filum vidit        

Electrical            

Ceramic                        

Electronic          

Nuclei