Macor Machinable Ceramic Glass Ceramic Tube

Prod Model:	HB36
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Flexural Strength:	108MPa
Volume Density:	2.5~2.8 g/cm3
Thermal Conductivity:	1.7 W/M@K
Color:	White

Product Description

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	"