Si3N4 bonded SiC ceramic refractory material, is mixed with high pure SIC fine powder and Silicon powder, after slip casting course, reaction sintered under 1400~1500°C. During the sintering course, filling the high pure Nitrogen into the furnace, then the silicon will react with Nitrogen and generate Si3N4,So Si3N4 bonded SiC material is composed of silicon nitride (23%) and silicon carbide(75%) as main raw material,mixed with organic material,and shaped by mixture, extrusion or pouring,then made after drying and nitrogenization.
Factory Price Reaction sintered SIC silicon carbide ceramic tube
Si3N4 bonded SiC as a new type refractory material,is used widely.The applying temperature is 1400 C.It has better thermal stability,thermal shock,which is better than plain refractory material and recrystallized SiC.It also has antioxidation,high corrosion resistant,wear-resistantance,high bending strength.It can resist corrosion and scouring,be no polluted and fast heat conduction in molten metal such as AL,Pb,Zn,Cu ect.
Factory Price Reaction sintered SIC silicon carbide ceramic tube
silicon nitride tube features and advantages
1. high temperature tolerance
2. High thermal conductivity and shock resistance
3. High mechanical strength and abrasion resistance
4. Excellent energy efficiency and corrosion resistance
Factory Price Reaction sintered SIC silicon carbide ceramic tube
silicon nitride tube application
The series of products are widely used for measuring temperature in the fields of ceramic, industrial furnaces, metallurgy, chemical industry, etc.
silicon nitride tube Specification:
Item | Data |
SiC content | >75% |
Si3N4 content | >22% |
Fe2O3 | <0.5% |
Bulk density | 2.6-2.7g/cm3 |
Apparent porosity | <16% |
Cold Crushing strength | 150Mpa |
rupture strength under normal temperature | >45Mpa |
rupture strength at 1200°C | >50Mpa |
Thermal conductivity at 800°C | >18w/m.k |
Thermal conductivity at 1200°C | >14w/m.k |
Thermal expansion coefficient | <4.7x10-6/°C |
Package and shipping
Package of silicon nitride tube: By cartons or wooden boxes or according to customer's requirement. We also received OEM service; the package can be designed according to your requirements.
Shipping of silicon nitride tube: By vessel or by train from any Chinese port, Samples can be delivered by International express.
Our Services
1. Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand, quickly respond mails and provide solutions.
2. Free sample
silicon nitride tube Sample and trial order is accepted for the quality evaluation.
3. Strict quality control
Arrange production on time and control quality strictly.
4. Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5. Professional Services
Provide all the detailed news and pictures from order to delivery;
Offer relative export documents and original certificate if needed;
Warm and considerable after-sale service
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