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Thermal-Shock-Resistant Mullite Ceramic Tubes
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These mullite tubes can repeatedly be exposed to temperature fluctuations without deforming or cracking. They can be used as a protective cover over materials that are moved between hot and cold environments, such as thermocouples. These tubes are fully fired and seal out air and gas in high temperature applications like nonporous alumina. They also resist corrosion from a variety of chemicals. Use them in furnaces, heaters, electrical insulation, and glass- and steel-industry refractories.
Temp. | 6" Lg. | 12" Lg. | 24" Lg. | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OD | ID | Wall Thk. | Color | Min. | Max., ° F | Fabrication | Performance | Dielectric Strength, V/mil | Porosity | Compressive Strength, psi | Hardness | Each | Each | Each | |||||
| 1/4" | 1/8" | 1/16" | Beige | Not Rated | 3,000 | Fired | Thermal Shock Resistant | 249 | 0% | 79,000 | Rockwell 45N 70 | 8052N11 | 00000 | 8052N21 | 000000 | 8052N31 | 000000 | ||
| 3/8" | 1/8" | 1/8" | Beige | Not Rated | 3,000 | Fired | Thermal Shock Resistant | 249 | 0% | 79,000 | Rockwell 45N 70 | 8052N12 | 00000 | 8052N22 | 00000 | 8052N32 | 00000 | ||
| 1/2" | 1/4" | 1/8" | Beige | Not Rated | 3,000 | Fired | Thermal Shock Resistant | 249 | 0% | 79,000 | Rockwell 45N 70 | 8052N13 | 00000 | 8052N23 | 00000 | 8052N33 | 00000 | ||
| 5/8" | 1/2" | 1/16" | Beige | Not Rated | 3,000 | Fired | Thermal Shock Resistant | 249 | 0% | 79,000 | Rockwell 45N 70 | 8052N14 | 00000 | 8052N24 | 00000 | 8052N34 | 00000 | ||
| 3/4" | 1/2" | 1/8" | Beige | Not Rated | 3,000 | Fired | Thermal Shock Resistant | 249 | 0% | 79,000 | Rockwell 45N 70 | 8052N15 | 00000 | 8052N25 | 00000 | 8052N35 | 00000 | ||
| 7/8" | 5/8" | 1/8" | Beige | Not Rated | 3,000 | Fired | Thermal Shock Resistant | 249 | 0% | 79,000 | Rockwell 45N 70 | 8052N16 | 00000 | 8052N26 | 00000 | 8052N36 | 000000 | ||
Thermocouple Connector Covers
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Shown with Two Covers on Mated Pair of Connectors |
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Temp. Range, ° F | Overall Lg. | Material | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Round-Pin Thermocouple Connector Connection | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| -35 to 212 | 2 3/4" | Neoprene | 6146N11 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Extra Thermal-Shock-Resistant Single-Closed-End SiAlON Ceramic Tubes
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Open End | Closed End |
Often used as a protective shield in thermocouples and other conditions with drastic climate changes, these SiAlON ceramic tubes won't deform, expand, or crack when repeatedly exposed to large temperature changes. Submerge the closed end of the tube into harsh settings, such as tanks and furnaces, to protect contents from coming into contact with harmful liquids and gases.
These tubes are stronger and resist thermal shock better than mullite and alumina, though they don’t remain as stable in ultra-high temperatures. They're not as hard as silicon carbide, so they shouldn't be used when wear resistance is necessary. Because they hold up to chemicals, they’re good for use with molten metal, such as aluminum and zinc alloy. Similar to nonporous alumina, these tubes help seal out gas and liquids.
Temp. | 6" Lg. | 12" Lg. | 24" Lg. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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OD | ID | Wall Thk. | Color | Min. | Max., ° F | Fabrication | Performance | Dielectric Strength | Porosity | Compressive Strength, psi | Hardness | Each | Each | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
One Open and One Closed End | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.492" | 0.256" | 0.118" | Gray | Not Rated | 1,830 | Fired | Extra-Thermal Shock Resistant | Not Rated | 0% | 510,000 | Rockwell 45N 83 | 4740N141 | 0000000 | 4740N142 | 0000000 | 4740N143 | 0000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.629" | 0.354" | 0.137" | Gray | Not Rated | 1,830 | Fired | Extra-Thermal Shock Resistant | Not Rated | 0% | 510,000 | Rockwell 45N 83 | 4740N131 | 000000 | 4740N132 | 000000 | 4740N133 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.866" | 0.472" | 0.197" | Gray | Not Rated | 1,830 | Fired | Extra-Thermal Shock Resistant | Not Rated | 0% | 510,000 | Rockwell 45N 83 | 4740N121 | 000000 | 4740N122 | 000000 | 4740N123 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1.102" | 0.630" | 0.236" | Gray | Not Rated | 1,830 | Fired | Extra-Thermal Shock Resistant | Not Rated | 0% | 510,000 | Rockwell 45N 83 | 4740N111 | 000000 | 4740N112 | 000000 | 4740N113 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
