Rør/Tube: Summary
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Materials
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Silicon Carbide
SIC |
Siliciumnitride
Si3N4 |
Boron Nitride
Grade A/Grade ZSBN |
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Properties
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| Density (g/cm3) |
2,5
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3,93 / 3,72 / 3,65
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6,01 / 5,60
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1,75
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3,2
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3,20
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1,9 / 2,9
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| Hardness (kg/mm2) |
400
|
1800 / 1400 /1500
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1400 / 1500
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–
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2.800
|
1600
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– / –
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| Bending Strength (kg/mm2) |
Poor
|
40 / 35 / 35
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90 / 60
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–
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50
|
80
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– / –
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| Fracture Toughness (MPam ½) |
Poor
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3,0 / 2,7 / 2,5
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7,0 / 8,0
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–
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2,5
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6,0
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– / –
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| Thermal Shock Resistance(DT) |
Good
|
200 / 200 / 200
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250 / 400
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Excellent
|
350
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750
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Excellent / –
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| Working Temperature(°C) |
800
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1500 / 1500 / 1400
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800 / 1000
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3000
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1400
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1100
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850/1850
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| Corrosion Resistance: Acid Alkali |
Good
Good |
Excellent / good
Excellent / good |
Good / Good
Good / Good |
Excellent |
Excellent |
Good
Good |
Excellent |
| Merit: | Machinable 0-poros Thermal and electrical insulator |
High Wear Resistance High Corrosion Resistance High Temperature Resistamce |
High Wear Resistance. High Toughness High thermal Insulator. |
High temperature strength Low surfacefriction Thermal and electrical conductor. |
Excellent hardness, wear- and corrosion-resistance High temperature strength. Thermal and electrical conductor. |
High Thermal Shock Resistance High temperature Strength High Wear Resistance. |
High tempereature Strenght in inert Atmosphere Thermal and electrical shock resistant. Thermal and electrical Conductor. |