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2" x 47" (50 OD x 44 ID x 1200mm L) Alumina Ceramic Tube (99.8%) High Purity - EQ-TA-50D-M1200-LD

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2" larger diameter Alumina tube is made in USA with high purity 99.8% ( 998) Al2O3 material. 998 alumina tube can be used at operating temperatures to 1800 oC in both oxidizing and reducing atmospheres. Tubes have been evacuated to 10-7 Torr. 998 alumina tube proves inert to carbon and refractory metals in many severe situations. SPECIFICATIONS

Purity Al2O3 > 99.8%
Density > 3.91 g /cm3
O.D 2" +/- 0.05 (50.3 mm)
I.D 1-3/4" +/- 0.05  (43.7 mm)
Tube Length 1200 mm 
Detailed demension drawing  
Max. working temperature
  • 1800oC
  • Please don't use alumina tube under vacuum at temperature > 1500 oC when vertically-mounted and >1400 oC when horizontally-mounted
  • Mcdanel strongly recommends keep ramp rate less than 100oC/ hour
  • Please keep thermal gradient less than 100oC/ inch to avoids cracking
  • Parts should not be placed directly onto the inside surface of a hot furnace tube in case of thermal shock
  • Please handle the tube carefully. Warranty does not include tube (but only for machine MTI provided)
Application Notes Ceramic Crucibles ( Alumina, Quartz and Zirconia etc )

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