insulating technical Silicon Nitride ceramic step bush tube pipe
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Silicon Nitride Ceramic:
The main composition of Alumina Ceramics is Al2O3, which generally contains more than 45%. Alumina ceramics have various excellent properties. High temperature resistance, generally can be used for a long time at 1600℃, corrosion resistance, high strength, its strength is 2 to 3 times that of ordinary ceramics, and the higher one can reach 5 to 6 times. The disadvantage is that it is brittle and cannot accept sudden environmental temperature changes. It has a wide range of uses, including crucibles, engine spark plugs, high-temperature refractory materials, thermowells, sealing rings, etc., as well as tools and molds. The main component of Silicon Nitride Ceramics is Si3N4, which is a high temperature ceramic with high high temperature strength, high hardness, wear resistance, corrosion resistance and self-lubricating. The coefficient of linear expansion is the smallest among various ceramics, and the service temperature is as high as 1400°C. It has excellent corrosion resistance. In addition to hydrofluoric acid, it can withstand the corrosion of various acids, alkalis and various metals, and has excellent electrical insulation and radiation resistance. It can be used as high temperature bearings, sealing rings used in corrosive media, thermocouple sleeves, and metal cutting tools. The main component of Silicon Carbide Ceramics is SiC, which is a kind of high-strength, high-hardness, high-temperature resistant ceramics. It can still maintain high bending strength when used at 1200℃~1400℃. It is the ceramics with the highest high-temperature strength. It has good thermal conductivity, oxidation resistance, electrical conductivity and high impact toughness. It is a good high-temperature structural material, which can be used for components that work at high temperatures such as rocket nozzles, thermocouple tubes, furnace tubes, etc.; use its thermal conductivity to make heat exchanger materials at high temperatures; use its high hardness and Wear resistance to make grinding wheels, abrasives, etc.
properties:
High hardness, high strength, wear resistance, corrosion resistance, high temperature(1200°), good thermal diffusivity, good thermal shock resistance(avoid the temperature changing rapidly), good insulativity, low density. The comprehensive properties are best in most of structure ceramic.
Data Sheet↓
Color: Black Grey
Density: ＞3.2g/cm3
Hardness: HRA90
Vickers Hardness (Hv50): ＞1550 HV0.5
Modulus of Elasticity: 290Gpa
Flexural Strength: ＞600Mpa
Compressive Strength: 2500Mpa
Modulus of Elasticity(25°C): 65Gpa
Fracture toughness:＞6.0 Mpam1/2
Maximum Use Temperature: 1200°C
Thermal Conductivity:15-20 W(m.K)
Thermal Expansion Coefficient: ＞3.1 10-6/°C
Thermal Shock Resistance: 500 △T°C
Special Heat Capacity: 700 KJ/kg.K
Dielectric Strength: 1 KV/mm
Dielectric Constant: er
Volume Resistivity(20°C): 1.0*10(12)Ω.cm
Application industry:
Machinery, electronic, semiconductor, chemical, petroleum, smelt.
Specific application:
Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Short time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad. 7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
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FAQ
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A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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