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Products   >   Boron nitride compound ceramic
Nozzles

Performance.1. The optimized formula and unique process make it highly resistant to thermal shock and high-temperature creep. Maximum using temperature 1700 ℃.
2. Low thermal expansion coefficient, no cracking or deformation during use.
3. Strong erosion resistance, wear resistance and metal corrosion resistance. Long service life.
4. Good raw materials, process control, product stability.

PRODUCT DESCRIPTION

1.Powder Metallurgy

2.Metal Casting

3.Insulators for High Temperature Furnace

4.Crucibles for Metal Evaporation

5.Parts for Melting Metals or Glass

6.Casting Molds for Metal or Alloy

7.High Temperature Support Parts

8.Transport Pipes or Nozzles for Melting Metal  

 

           Grade
Typical Value 

BN-B

BN-C

BN-D

BN-E

Purity (%)

BN+Zr+Al

BN+SiC

BN+Zr

BN+AlN

Color

Gray white

Gray green

Gray white

Gray green

Density (g/cm3)

2.25-2.35

2.40-2.50

2.80-2.90

2.80-2.95

Oxygen content (%)

Volume resistivity (Ω・cm

>1013

>1012

>1012

>1013

Operating temp
(℃)

  Air

≦1000

≦1000

≦1000

≦1000

 Inert gas

≦1750

≦1750

≦1800

≦1800

 Vacuum

≦1750

≦1750

≦1800

≦1800

Bending strength (MPa)

65

80

90

90

Coefficient of thermal expansion (10-6/℃)

2.0

2.8

3.0

2.8

Thermal conductivity (W/m・K)

30

40

30

85

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