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[High Temp Thermocouples] ½ê¶ó¹Í Æ©ºêÀ£ |
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±Û¾´ÀÌ : ´ÙÀÏIBC
³¯Â¥ : 09-03-20 16:45
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Alternative Ceramic Tubewells
Material |
Chemical
Symbol |
Operating
Temperature |
Remarks |
Sintered
Alpha |
SASiC |
3000¡Æ F (1650¡Æ C) |
No free silicon, higher density than SiC, low porosity, excellent Silicon Carbide thermal shock resistance, high chemical, corrosion and abrasion resistance. Excellent thermal conductivity. |
Silicon
Carbide |
SiC |
3000¡Æ F (1650¡Æ C) |
Excellent thermal conductivity, corrosion resistance and abrasion resistance, good thermal shock resistance. |
Fused
Quartz |
SiO2 |
3050¡Æ F (1677¡Æ C) |
Excellent thermal shock resistance, unreactive to most acids and metals, performs well in oxidizing, inert or neutral atmospheres. |
Mullites |
3Al2O3•2SiO2 |
2750¡Æ F (1510¡Æ C) |
Low thermal expansion, good thermal shock resistance, excellent mechanical strength. |
Tolerance of Thermocouples
|
¡ÆC |
¡ÆF |
ANSI/ASTM |
Temperature Range |
Standard |
Special |
Temperature Range |
Standard |
Special |
R or S |
0¡Æ to 600¡Æ 600¡Æ to 1480¡Æ |
¡¾1.5¡Æ ¡¾0.25% T |
¡¾0.6¡Æ ¡¾0.1% T |
32¡Æ to 1112¡Æ 1112¡Æ to 2700¡Æ |
¡¾2.7¡Æ ¡¾0.25% (T-32) |
¡¾1.08¡Æ ¡¾0.1% (T-32) |
B |
870¡Æ to 1700¡Æ |
¡¾0.5% T |
¡¾0.25% T |
1600¡Æ to 3100¡Æ |
¡¾0.5% (T-32) |
¡¾0.25% (T-32) |
C* |
0¡Æ to 426¡Æ 426¡Æ to 2315¡Æ |
¡¾4.4¡Æ ¡¾1% T |
- |
- 32¡Æ to 800¡Æ - 800¡Æ to 4200¡Æ |
¡¾8¡Æ ¡¾1% (T-32) |
- |
* Formerly Conax Technologies Type W5, Type C not an ANSI official designation.
Thermocouple Characteristics
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Color Coding |
ANSI/ASTM |
Symbol Single |
Generic Names |
Individual Conductor |
Overall Jacket Extension Grade Wire |
S
|
SP SN |
Platinum 10% Rhodium Platinum |
Black Red |
Green |
R |
RP RN |
Platinum 13% Rhodium Platinum |
Black Red |
Green |
B |
BP BN |
Platinum 30% Rhodium Platinum 6% Rhodium |
Gray Red |
Gray |
C |
P N |
Tungsten 5% Rhenium Tungsten 26% Rhenium |
Green Red |
Red |
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