Beads insulator is made of talc porcelain, also known as talc porcelain, is white in color, strong in acid resistance, good in chemical stability, high in insulation, strong in adsorption and high in temperature (1200-1300 ºC), which is a good electronic insulating porcelain material.
It is suitable for thermocouple insulation. The products are produced according to international standards, with complete
varieties and specifications.
Properties | Unit | Beads insulator |
General properties | ||
Material | MgO&SiO2 (=45%Al2O3) | |
Color | white | |
Apparent porosity | % | <1 |
Mechanical properties | ||
Bulk density | g/cm3 | 3.0~3.5 |
Vickers hardness | Kg/mm2 | 1400 |
Water absorption | % | <0.2 |
Flexural strength | MPa | >150 |
Fracture toughness | MPa/m1/2 | 4.5 |
Elastic modulus(20ºC) | GPa | 250 |
Thermal properties | ||
Max. operating temp. | ºC | 1350 |
Coefficient of thermal expansion | a×10-6/ºC | 8 |
Coefficient of thermal conductivity | W/m*K | 25 |
Thermal shock resistance | T(ºC) | 180 |
Order codes | Round&Oval | Dimension(OD*hole qua./dia*L) |
3654150 | Round | 3.65*4/1.0*50mm |
421020 | Round | 4*2/1.0*20mm |
440820 | Round | 4*4/0.8*20mm |
473221495 | Oval | 4.7/3.2*2/1.4*9.5mm |
521420 | Round | 5*2/1.4*20mm |
613810 | Round | 6*1/3.8*10mm |
621525 | Round | 6*2/1.5*25mm |
621820 | Round | 6*2/1.8*20mm |
1023525 | Round | 10*2/3.5*25mm |
1042525 | Round | 10*4/2.5*25mm |
121024225 | Oval | 12/10*2/4.2*25mm |
121024020 | Oval, at termination | 12/10*2/4.0*20mm |
1243650 | Round | 12*4/3.6*50mm |
1444020 | Round | 14*4/4.0*20mm |
QC System 100% inspection before shipping
Packaging Standard package/ As per customized specifications
Delivery 7-30 working days based on quantity
1. Why the price is so low? You are ordering directly from the factory.
2.Where is your factory located? Our factory is located inYuyao, Zhejiang, China
3.What type of payment do you have available?A:We accept TT and L/C,as sample order,the Western nion,Money gram is available.
4.How can I get some samples? We are honored to offer you samples.
5.How does your factory do regarding quality control? "Quality is in my hand,customer in our heart". Topright people always attach great importance to quality controlling from the very beginning to the very end.