R7s Ceramic Cap/Halogen lamp Base Material :Steatite ceramic base Size :R7s standard
Ceramic insulator
Industrial Ceramics
Electrical Ceramics
Technical Ceramics
Specification:
High at elevated temperatures
High dielectric strength
Excellent electrical resistance
Abrasion resistance
High electrical insulation
Application :
Electric appliance industry
Automotive industry
Mechanical industry
Engineer industry
Alumina Content |
| 80-85% | 90-96% | > 99.5% | 99% |
General Application |
| Lower Cost Electrical & Mechanical | High Strength, Wear Resistant, Electronic, Insulating, Mechanical, Structural & Metalizing | Extremely High Purity, Temperature & Strength; Excellent Corrosion & Wear Resistance | Porous, Easily Degassed & Machinable |
Porosity | % | 0-.05 | 0-.05 | 0-.05 | Variable |
Density | gm/cm3 | 3.45-3.50 | 3.55-3.75 | 3.75-3.95 | 2.4 |
Flexural Strength | kpsi | 35.0-40.0 | 40.0-50.0 | 50.0-55.0 | - |
Comprehensive Strength | kpsi | 260.0 | > 300.0 | > 300.0 | - |
Tensile Strength | kpsi | 15.0-20.0 | 20.0-28.0 | 20.0-28.0 | - |
Linear Coefficient of Thermal Expansion | (cm/cm/°C)25-300°C25-700°C | 5.9X10-66.5X10-6 | 6.3X10-67.0X10-6 | 6.5X10-67.5X10-6 | 6.5X10-67.5X10-6 |
Dielecctric Constant at 25°C | 1 MH10 MH | 8.5-8.98.4-8.8 | 9.2-9.89.0-9.6 | 9.5-9.99.3-9.7 | - |
Dielectric Strength | Volt/mil | 200 | 225 | 225 | - |
Te Value | °F°C | 1472800 | > 1832> 1000 | > 1832> 1000 | > 1832> 1000 |
Thermal Conductivity at 25°C | cal/sec/cm2/cm/°C | .03-.04 | .04-.06 | .07-.08 | - |
Thermal Shock |
| Good | Good | Good | Good |
Safe UseTemperature | °F°C | 25501400 | 3000-31001650-1700 | 32751800 | 32751800 |
R7s Ceramic Cap/Halogen lamp Base
