Model NO.: HB34
Trademark: Highborn
Specification: ROHS
Origin: Jiangsu/China
HS Code: 6906000000
Model NO.: HB34
Trademark: Highborn
Specification: ROHS
Origin: Jiangsu/China
HS Code: 6906000000
Machinable Glass Ceramic has a continuous use temperature of 800ºC and a peak temperature of 1000ºC. Its coefficient of thermal expansion readily matches most metals and sealing glasses.It processes good machinability and can be lathed, milled, planed, ground, bored, incised and threaded. It also has the advantages of insulation, pore-free, high/low-temperature resistant, acid and alkali resistant and thermal impact resistant.
 
Detail Description
 Magnetic susceptibility                                ≤1.2×10-6
Dielectric constant                                      6~7
Breakdown voltage                                     ≥15 KV/mm
Flexural strength                                        ≥108Mpa
Fracture Modulus                                       15000bf/in2
Impact toughness                                       ≥ 3.8 KJ/m2 Knoop
Hardness                                                   176~343 kg/mm2
Volume density                                       2.5~2.8 g/cm3
Range of operating temperature                -200~+1000ºC
Thermal expansion coefficient                   ≤94×10-7 /K
Thermal conductivity                                 ≥ 1.7 W/m·K
Applications
It is widely used for nuclear, microwave high vacuum insulation, high precision magnetism-free skeleton for aeronautic and astronautic electrical devices, ultra-high voltage insulation for electric motors and structural parts at strong erosion environments. In terms of machinability, it can take place of aluminum oxide and boron nitride ceramics that are difficult to machine.
Size
 Rod: Dia25mm~Dia160mm, up to 300mm long
Plate: customized various sizes.
 
he main advantage:
-It can be turned,milled,grinded,drilled and tapped and other machining.
-Precision machining dimensions.
 -Non-magnetic.
 
 

Item
Standard value
Remarks

Density
2.6 g/m³
 

Porosity
0.069%
 

Water absorption
0
 

Hardness
4-5
Mohs

Color
Pure white
 

Thermal expansion coefficient
72×10-7/°C
100°C ~600°C average value

Thermal conductivity
1.71W/m.k
25°C

Working temperature
800°C
 

Bending Strength
>108MPa
 

Compress strength
>508 MPa
 

Impact Toughness
>2.56KJ/ m2
 

Modulus of elasticity
65GPa
 

Insertion loss
1~ 4×10-3
Room temperature

Dielectric constant
6-7
"

Dielectric strength
>40KV/mm
Thickness of sample 1mm

Bulk density
1.08×1016Ω.cm
25°C

1.5×1012Ω.cm
200°C

1.1×109Ω.cm
500°C

Gas efficiency at normal temperature
8.8×10-9 ml/s. cm2
Vacuum experienced for eight hours

Helium permeatingrate
1×10-10ml/s
After 500C burning,cool to room temperature.

5%HC1
0.26mg/ cm2
95°C,24 hours

5%HF
83mg/ cm2
"


Machinable Ceramic&Machinable Glass Ceramic Macor Rod
Machinable Ceramic&Machinable Glass Ceramic Macor Rod
Machinable Ceramic&Machinable Glass Ceramic Macor Rod
  Machinable Glass Ceramic has a continuous use temperature of 800ºC and a peak temperature of 1000ºC. Its coefficient of thermal expansion readily matches most metals and sealing glasses.It processes good machinability and can be lathed, milled, planed, ground, bored, incised and threaded. It also has the advantages of insulation, pore-free, high/low-temperature resistant, acid and alkali resistant and thermal impact resistant.
 
Detail Description
 Magnetic susceptibility                                ≤1.2×10-6
Dielectric constant                                      6~7
Breakdown voltage                                     ≥15 KV/mm
Flexural strength                                        ≥108Mpa
Fracture Modulus                                       15000bf/in2
Impact toughness                                       ≥ 3.8 KJ/m2 Knoop
Hardness                                                   176~343 kg/mm2
Volume density                                       2.5~2.8 g/cm3
Range of operating temperature                -200~+1000ºC
Thermal expansion coefficient                   ≤94×10-7 /K
Thermal conductivity                                 ≥ 1.7 W/m·K
Applications
It is widely used for nuclear, microwave high vacuum insulation, high precision magnetism-free skeleton for aeronautic and astronautic electrical devices, ultra-high voltage insulation for electric motors and structural parts at strong erosion environments. In terms of machinability, it can take place of aluminum oxide and boron nitride ceramics that are difficult to machine.
Size
 Rod: Dia25mm~Dia160mm, up to 300mm long
Plate: customized various sizes.
 
he main advantage:
-It can be turned,milled,grinded,drilled and tapped and other machining.
-Precision machining dimensions.
 -Non-magnetic.
 
 

Item
Standard value
Remarks

Density
2.6 g/m³
 

Porosity
0.069%
 

Water absorption
0
 

Hardness
4-5
Mohs

Color
Pure white
 

Thermal expansion coefficient
72×10-7/°C
100°C ~600°C average value

Thermal conductivity
1.71W/m.k
25°C

Working temperature
800°C
 

Bending Strength
>108MPa
 

Compress strength
>508 MPa
 

Impact Toughness
>2.56KJ/ m2
 

Modulus of elasticity
65GPa
 

Insertion loss
1~ 4×10-3
Room temperature

Dielectric constant
6-7
"

Dielectric strength
>40KV/mm
Thickness of sample 1mm

Bulk density
1.08×1016Ω.cm
25°C

1.5×1012Ω.cm
200°C

1.1×109Ω.cm
500°C

Gas efficiency at normal temperature
8.8×10-9 ml/s. cm2
Vacuum experienced for eight hours

Helium permeatingrate
1×10-10ml/s
After 500C burning,cool to room temperature.

5%HC1
0.26mg/ cm2
95°C,24 hours

5%HF
83mg/ cm2
"


Machinable Ceramic&Machinable Glass Ceramic Macor Rod
Machinable Ceramic&Machinable Glass Ceramic Macor Rod
Machinable Ceramic&Machinable Glass Ceramic Macor Rod
 

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