Boron Nitride Tube (BN Tube)

Dimensions: Length: 10~400mm, ID: >2mm

SKU: HBN-T

Boron Nitride Tube (BN Tube)

 

Edgetech provides standard products & tailor-made products for hot-pressed boron nitride tube. Except for pure BN99 tube, we also supply BN composites with silicon carbide, calcium borate, aluminum nitride and zirconia, to fulfill various of demand for the customers. Check the boron nitride specifications for our pure BN99 and zirconia composite material ZSBN.

Typical boron nitride tubes are smaller than 12″ diameter x 12″ length due to the limitation of our equipment. Boron nitride tubes could be connected together to make longer boron nitride tubes, with flat or threaded joint. Other forms of boron nitride tubes could be available with drawings.

 

Boron Nitride Tube Basic Information & Materials

 

MaterialBN99, BN60, ZSBN, BN-AlN, HBR, ZSBN
Molecular Weight24.82
AppearanceWhite
Melting Point2973 °C
Density2.1 g/cm3 (h-BN); 3.45 g/cm3 (c-BN)
Solubility in H2OInsoluble
Refractive Index1.8 (h-BN); 2.1 (c-BN)
Electrical Resistivity13 to 15 10x Ω-m
DimensionsLength: 10~400mm, ID: >2mm

 

Boron Nitride Materials

 

MaterialDescription
BN99Hot pressed at high temperature (1900℃).
Excellent corrosion resistance and thermal conductivity. Limited wear resistance
Self-bonded and high purity (>99%)
BNBOGeneral purpose material
Bonded by boric oxide
BNCBCalcium borate bonded boron nitride
Enhanced moisture resistance
BN60BN 60%, SiO2 40%
BN40BN 40%, SiO2 60%
ZSBNBN-45%, Zr2O3 45%

 

Boron Nitride Tube Advantages & Applications:

 

-Low wettability to molten metal
-Relatively high thermal conductivity with low thermal expansion
-Relatively high thermal shock resistance
-Extremely high working temperature with proper inert gas protection (>3000C has been recorded).

Based on the above properties, Boron Nitride Tube is an ideal choice in a wide range of industries, such as:

-Electric insulators in vacuum system
-Boron Nitride components for PVD, MOCVD, MBE system.
-Nozzles for nonferrous metals metallurgy industry
-Spacers for glass melting
-Insulators for high-temperature furnace

 

Packing

 

As a ceramic material, boron nitride is quite fragile in a lot of cases. Our Hot-Pressed Boron Nitride Tube is carefully handled to minimize damage during storage and transportation. Suitable outer boxes and inner cushioning materials are used for BN products, vacuum packing is also engaged for some of the parts.

 

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