Protecting Tubes – Silicon Carbide Protecting Tubes
| TOLERANCE TABLE | |
|---|---|
| Overall Length Less than 24" 24" to 45" Over 45" | Inside Length +/-1/8" +/-3/16" +/-1/4" |
Part No. SIC-A-B
SILICON CARBIDE is a porous high refractory material used for protection against extreme temperature, abrasive atmospheres and direct flame impingement. “SIC” tubes cal also be used for direct immersion into molten aluminum or brass.
| PART NO. | OVERALL LENGTH ("A") | STOCK |
|---|---|---|
| SIC A - B | 12" | CO |
| SIC A - B | 18" | CO |
| SIC A - B | 24" | CO |
| SIC A - B | 30" | CO |
| SIC A - B | 36" | CO |
| SIC A - B | 42" | C- |
| SIC A - B | 48" | C- |
B = Collar Designation: (with Collar, “C”, i.e., SIC-24″-C; without Collar, “O”, i.e., SIC-24″-O)
Stock Designation: “C” = Stocked with Collar; “O” = Stocked, no Collar.
PHYSICAL PROPERTIES:
Major Constituent:
Silicon Carbide (SiC)
Dry Abrasion Resistance Index:
1.0
Maximum Usable Hot Face Temperature:
In Oxidizing Atmosphere: 1650°C (3000°F)
In Inert Atmosphere: 1650°C (3000°F)
Bulk Density:
2.58 g/cm3 (3800 lb/in2)
Modulus of Rupture:
267 kg/cm2 (>20,000 lb/in2)
Compressive Strength:
>1406 kg/cm2
Thermal Conductivity:
@ 1204°C (2200°F)
15.7 W/m °C
(109 Btu in/hr ft2 °F)
Coefficient of Linear Expansion:
@ 20-1538°C (68-2800°F)
4.68 x 10-6 mm/mm °C
(2.6 x 10-6 in/in °F)
Thermal Shock Resistance:
Very Good
Acid Resistance:
Good (except hydroflouric)
Permeability:
nil
Apparent Porosity:
14%
Electrical Characteristics:
Semi-Conductor