J D Global Trading Company is tungsten powder, high pure tungsten trioxide, tungsten bar, tungsten stretch, tungsten sheet, tungsten plate, tungsten rod, tungsten rod electrode, tungsten plate electrode, tungsten special type parts, etc. supplier and exporter.
J D Global Trading Company has been providing customers over the past years with the most advanced hermetic connector and packaging technologies available to provide a controllable expansion composite matrix, yielding superior material stability and uniform thermal expansion characteristics to provide the designer a practical solution to meet critical thermal parameters.
Advantages of Tungsten (W):
Uniform Thermal expansion; Good thermal conductivity; Precision flatness capability; Bondable gold plating; Thickness from .004" to .500"; Zero corner radius; Integrated ribs; Precision complex geometry; Lowest thermal expansion; Good wear resistance.
Typical Physical and Mechanical Properties:
| Material Composition | Electrical Conductivity (% IACS) | Thermal Conductivity W/moK 25°C | Coefficient of Thermal Expansion 10-6/°C |
| 99.9%W | 30 | 167 | 4.5 |
Typical areas Application:
- Heat Sinks and Spreaders
- Microwave Carriers
- Ceramic Substrate Carriers
- GaAs and Silicon Device Mounts
- Laser Diode Mounts
- Surface Mount Package Conductors
- Optical Packages
- Power Packages
