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Mullite
Mullites
(3Al2O3 • 2SiO2) are refractory
oxide materials combining low thermal expansion, good mechanical
strength and resilience at elevated temperatures. McDanel Advanced Ceramic Technologies LLC
mullites are formulated to produce dense shapes, some in a glass
matrix in order to yield maximum thermal shock resistance and good
strength.
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Grades |
Typical Uses |
Data
Sheets |
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MV20 is a dense mullite in a glassy matrix formulated to
offer a high quality economical insulating tubing for thermocouple
applications. |
Insulators in oxidizing conditions for base and noble metal
thermocouples used in conditions up to 1450°C. |
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The datasheets
are in PDF format. If you do not have the Acrobat reader you
may download it now. |
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MV30 is an extremely versatile and economical material.
Its workability allows an extensive range and flexibility in
fabrication. It is well suited for the casting of special shapes.
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Thermocouple protection tubes, target and sight tubes, furnace
muffles, diffusion liners, combustion tubes, radiant furnace
tubes and kiln rollers. |
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Dimensional Tolerances:
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MATERIAL
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TO
MAXIMUM OUTSIDE DIAMETER OF:
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25.4mm
(1")
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114.3mm
(4 1/2")
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152.4mm
(6")
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228.6mm
(9")
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MULLITE
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±5%
or ±.65mm
±(0.025") min.
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±3%
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±4%
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±5%
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Standard
camber tolerance is .794 mm (1/32")) per 305 mm (1 foot).
Standard strength tolerance is ±1.575 mm (1/16").
Tighter tolerances and non-catalog tolerances are provided
by quotation.
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