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Products   >   Boron nitride compound ceramic
Horizontal Continuous Casting Separation Rings

Performance

1. The oxidation resistance temperature is 1000 ℃, which can replace graphite products.
2. Metal corrosion resistance, no wetting, long service life.
3. The product has high density, good mechanical strength, does not react with most active metals, and has good chemical 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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