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Formula: BN
Form: Tube
Material: Boron Nitride
CAS Number: 10043-11-5
Commodity: Ceramics
Boron Nitride Tubes are a product offered by Goodfellow within its range of advanced ceramics. These tubes are composed of hexagonal boron nitride, an inorganic compound known for its high thermal conductivity, electrical insulation, and lubricating properties. The tubes come in 5 size variations. Boron nitride tubes find use in high temperature equipment like crucibles and thermocouple sheaths. Their electrical insulation also makes them suitable for use in ion implantation components.
Tolerances
Tube
| Outside Diameter | =<2mm | ±10% |
|---|---|---|
| Outside Diameter | =<5mm | ±10% |
| Outside Diameter | >5mm | ±10% |
| Wall Thickness | ±20% |
Material Properties for Ceramics
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Fair |
| Acids - dilute | Fair |
| Alkalis | Fair |
| Halogens | Poor |
| Metals | Good |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant | 4.3 |
| Dielectric strength( kV mm⁻¹ ) | 40-200 |
| Volume resistivity( Ohmcm ) | 10¹¹-10¹⁴@25 |
Physical Properties
| Element | Value |
|---|---|
| Apparent porosity( % ) | Feb-15 |
| Density( gcm⁻³ ) | 1.9-2.2 |
Thermal Properties
| Element | Value |
|---|---|
| Sublimation point( C ) | 2600-2800 |
| Upper continuous use temperature( C ) | 950-2500 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 800-2000@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 15-50@20°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 1-36@20-1000°C |
Mechanical Properties
| Element | Value |
|---|---|
| Tensile modulus( GPa ) | 20-35 |
| Shear strength( MPa ) | Dec-25 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 30-120 |
Other Customers Purchased
-
Pyrolitic Boron Nitride Sheet Grade: Pyrolitic
Formula: BN
Thickness: 1mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 10043-11-5
UOM Code: 578-641-89
eachStarting at $524.73
Discounts applied for volume purchases -
Zirconium Tube Formula: Zr
Percentage Purity: 99.2%
Outside Diameter: 6.35mm
Wall Thickness: 0.9mm
Inside Diameter: 4.55mm
Length: 200mm
Temper: Annealed
CAS Number: 7440-67-7
UOM Code: 032-374-21
eachStarting at $0.00
Discounts applied for volume purchases -
Tungsten/Copper Alloy Tube (W 60/Cu40) Formula: W 60/Cu40
Outside Diameter: 3.15mm
Wall Thickness: 1.15mm
Inside Diameter: 0.85mm
Length: 10mm
UOM Code: 786-428-40
eachStarting at $181.55
Discounts applied for volume purchases -
Silver/Palladium Alloy Tube (Ag70/Pd30) Formula: Ag70/Pd30
Outside Diameter: 2.2mm
Wall Thickness: 0.1mm
Inside Diameter: 2mm
Length: 100mm
UOM Code: 239-521-57
eachStarting at $316.44
Discounts applied for volume purchases -
Yttria-stabilized Zirconia Tube Formula: ZrO₂/Y₂O₃
Outside Diameter: 3.5mm
Wall Thickness: 0.25mm
Inside Diameter: 3mm
Length: 100mm
CAS Number: 114168-16-0
UOM Code: 910-637-06
eachStarting at $1,551.21
Discounts applied for volume purchases -
Tungsten/Copper Alloy Tube (W 80/Cu20) Formula: W 80/Cu20
Outside Diameter: 0.5mm
Wall Thickness: 0.13mm
Inside Diameter: 0.24mm
Length: 10mm
UOM Code: 783-917-60
eachStarting at $154.06
Discounts applied for volume purchases
