Boron Nitride Tubes

High purity boron nitride tubes could withstand higher temperature in vacuum than lower purity boron nitride tubes. Although we usually claim the maximum working temperature as 2500C, there`s record to use our material at 3000+ C. Due to the low wettability with metals, boron nitride is an ideal material to handle molten metals, especially for high purity material metal in vacuum. QS Rare Elements could custom make all kinds of tubes in about 2 weeks with $200 MOQ. Typical boron nitride tubes are smaller than 12" dia 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 presented below. Other forms of boron nitride tubes could be available with drawings.

Material: BN99, BN60, ZCBN, BN-AlN, HBR, ZSBN,
Length: 10~400mm
ID: >2mm
Typical Lead Time: 2~3weeks

Hexagonal Boron Nitride, or h-BN, with hardness about 4, is a machinable material. As the sintering of this material is not quite easy, it requires about 1900C if it is hotpressed without any additive(usually boron oxide)

HBN/HBR is originally a product code for Momentive Performance Materials and represents for the boricoxide or calcium enhanced boron nitride material. QSRE is also providing calcium borate enhanced boron nitride with similar performance compared with HBN and HBR. Although calcium (or zirconium) enhanced HBR (or ZSBN) are the most common composite boron nitride material, we also produce a series of other composite boron nitride, such as AlN-BN, SiC-BN

List of major boron nitride material QSRE could supply

BN99 (Data Sheet): >99% Pure boron nitride material
BN-SiC (Data Sheet): SiC enhanced boron nitride
BN-AlN (Data Sheet): Aluminum Nitride enhanced BN
CBN (Data Sheet): CaO enhanced BN, Similar with HBN
ZCBN (Data Sheet): Zirconia enhanced BN
PBN (Data Sheet): Pyrolytic boron nitride/CVD boron nitride

Boron Nitride Tubes

Product Details