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1650c High-Temp Recrystallized Silicon Carbide Tube Rsic Roller

China 1650c High-Temp Recrystallized Silicon Carbide Tube Rsic Roller, Find details about China Sic Tube, Sic Radiant Tube from 1650c High-Temp Recrystallized Silicon Carbide Tube Rsic Roller

Trademark
SHANGTAO
Specification
RoHS
Origin
Shanghai
HS Code
8547100000
Trademark
SHANGTAO
Specification
RoHS
Origin
Shanghai
HS Code
8547100000

1.Reaction sintering SiC

Chemical Composition

SiC ≥87 %

Dissociative silicon≤12.5%

Dissociative carbon≤0.1%

Others≤0.4%

1650c High-Temp Recrystallized Silicon Carbide Tube Rsic Roller1650c High-Temp Recrystallized Silicon Carbide Tube Rsic Roller

Item

Unit

Data

Using temperature

C

1380

Density

g/cm3

≥3.02

Porosity

%

<0.1

Flexural strength

Mpa

250(20C)

Mpa

280(1200C)

Modulus of elasticity

Gpa

330(20C)

Gpa

300(1200C)

Thermal conductivity

W/m.k

45(1200C)

Coefficient of thermal expansion

K-1x10-6

4.5

Moh's hardness

 

13

 

 

 2.

SiC%

Fe2O3

AI2O3%

Dissociative  SI+SIO2%

Dissociative C%

≥98

≤0.5

≤0.02

≤0.4

≤0.3

 

 

Physical property

Specific weight

3.2

Moh's hardness

9.5-9.8

Tensile strength

>1.50

Porosity %

25~32

 

specific heat  Kcal/Kg C

0 C

0.148

 rates of radiationλ=0.65μ

0.87

average coefficient of linear expansion 10- M/C

600C

4.3

400C

0.255

thermal conductivity

Kcal/Mh C

600C

14-18

900C

4.5

800C

0.294

1100C

12- 16

1200C

4.8

1200C

0.325

1300C

10-14

1500C

5.2

1600C

0.355

 

 3.Si3N4 bonded SiC 

 

 

 

Si3N4(about 23%) bonded SiC as a new type refractory material,is used widely.The applying temperature is 1400C.It has better thermal stability,thermal shock,which is better than plain refractory material and recrystallization SiC.It also has antioxidation,high corrosion resistant,wear-resistantance,high bending strength.It can resist corrosion and scouring,be no polluted in molten metal such as AL,Pb,Zn,Cu ect.

 

 

 

The diameter of Si3N4 bonded SiC thermocouple protection tube is Φ20-50mm,length is 1600 mm.It can be usded in high temperature kiln furnace and all kinds of atmosphere.It also can be used in all kinds of melted liquid.

 

 

 

The physical and chemical performance of Si3N4 bonded SiC :

 

Item

Index

Compressive strength  Mpa

> 120

Bending strength  Mpa

> 40

Vol. density  g/cm³

2.4

Porosity  %

20

Thermal conductivity (1200 c) W/Mc

15

Thermal shock 1000c-20c

> 20 times

Resistivity

10000

Moh's hardness

> 9

 

 

 

Specification of Si3N4 bonded SiC thermocouple protection tube:

 

Diameter mm

Inner dia.mm

Length mm

Φ20

12

500-1000

Φ25

14

500-1200

Φ30

18

500-1300

Φ40

25

500-1300

Φ45

29

500-1300

Φ50

32

500-1300

Φ60

42

500-1400

Φ70

52

500-1500

Remarks:.

1. It can be made one sealing end,or both open ends

2.The diameter of all kinds of crucible can made Φ70,height 600 mm

 

 

 

 4.Pure  Silicon nitride

 

Item

Index

Main component

Si3n4

sintering process

gas pressure sintering

Bulk density,g/cm3

3.20

coefficient of thermal expansion 10-6/K

3.20

Young modulus GPa

300

Hardness

HV

1400~1500

HRA

89~90

HRC

78

Bending strength, MPa

700

Fracture toughness, MPa.m1/2

6.0

Max working temperature C

1000

thermal conductivity

27

1650c High-Temp Recrystallized Silicon Carbide Tube Rsic Roller

 1650c High-Temp Recrystallized Silicon Carbide Tube Rsic Roller

1650c High-Temp Recrystallized Silicon Carbide Tube Rsic Roller

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