Gold Member Since 2014
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Shanghai Gongtao Ceramics Co., Ltd.

Metallized Ceramic Components, Machinable Ceramic manufacturer / supplier in China, offering Machining Machinable Glass Ceramic Bars, Infrared Lamp Tube for Sauna Heater, Sauna Tube Heater and so on.

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Machining Machinable Glass Ceramic Bars

FOB Price: US $0.1 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $0.1/ Piece
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Production Capacity: 50000 PCS/Year
Transport Package: Plywood Case
Payment Terms: L/C, T/T, Money Gram, Western Union

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Basic Info
  • Model NO.: GT-0073
  • Feature: Long Time Materials
  • Shape: Pipe
  • Trademark: SHANGTAO
  • Origin: Shanghai
  • Refractoriness (℃): 1580< Refractoriness< 1770
  • Type: Heat-Resistant Material
  • Material: Alumina Cement
  • Specification: RoHS
Product Description

Provide customers a comprehensive purchasing platform of industrial and electric heat ceramic products




Gongtao offers precision metallized ceramic components for the military, medical, and aerospace industries. Through spray, needle, and brush coatings or screen printing our capabilities allow us to metallize on flat, cylindrical, and complex ceramic bodies. Moly-Manganese and Tungsten-Manganese are the typical base coat materials used for metallization. 


In order to achieve welding between ceramic and metal, the ceramic surface must be firmly glued to a layer of metal film, the ceramic metal. The ceramic surface of the metal, making it not only has the characteristics of ceramics, but also has properties of a composite material of metal, while the surface of ceramics can also be used in ceramic metal metal seal area. Our existing technics include: be silver, molybdenum and manganese method, gold-plated law, tin law, law and other nickel metal ceramic technology, according to customer requirements for ceramic metal processing.

Product description: 
1. Raw material: 95% alumina oxide ceramics 
2. Ceramic body and metal layer with the degree of thermal expansion coefficient, and good for thermal shock performance. 
3. Continuous dense layer of metalized coating, no spots, no cracks, no bubbles or be oxidized. 
4. Outer layer and the solid metal have a good binding. 
5. Dense ceramic body, no deformation, no cracks. 
6. GONGTAO custom Metallized ceramic prototype to high volume production capacity 

Metallized types (optional): 
Ceramic + Mn-Mo plating 
Ceramic + Ni plating 
Ceramic + AG plating 
Ceramic + Au plating 
Ceramic + Sn plating 
Ceramic + AG+Ni+Au or Sn plating 

Feed-through insulators, Headers, High-power receptacles, Insulating discs, Insulator rings and cylinders, Precipitator products, Power switches, Traveling wave tubes, Vacuum interrupters, Windows, Power grid tubes, X-ray tubes 
Machining Machinable Glass Ceramic Bars
Machining Machinable Glass Ceramic Bars

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/ m 2  
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 1.08×10 16 Ω.cm 25°C
1.5×10 12 Ω.cm 200°C
1.1×10 9 Ω.cm 500°C
Gas efficiency at normal temperature 8.8×10 -9  ml/s. cm 2 Vacuum experienced for eight hours
Helium permeatingrate 1×10 -10 ml/s After 500C burning,cool to room temperature.
5%HC1 0.26mg/ cm 2 95°C,24 hours
5%HF 83mg/ cm 2 "

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