Gas Pressure Sintered Silicon Nitride Ceramic Semicircular Bushing Si3n4 Half Tube

Product Description

Gas Pressure Sintered Silicon Nitride Ceramic Semicircular Bushing Si3N4 Half Tube. It is an important structural ceramic material, high hardness, itself has lubricity, and wear resistance, atomic crystal; Oxidation resistance at high temperature.

Product Description

Product name	Gas Pressure Sintered Silicon Nitride Ceramic Semicircular Bushing Si3N4 Half Tube
Material	Silicon nitride
Color	Black
Size	Customized
Payment Item	T/T,Western Union,Online payment by credit card are available
MOQ	2 PCS

Silicon Nitride Ceramic Pipe:

Silicon Nitride Si3N4 ceramics maintain high mechanical strength at high temperatures and has higher chemical corrosion resistance and thermal shock when compared to other ceramic materials.

 

Features of Si3n4 Tube:

1. high temperature strength
2. superior thermal shock resistance
3. excellent wear resistance
4. good fracture toughness
5. mechanical fatigue and creep resistance
6.excellent non-wetting property with good oxidation resistance

Product Parameters

Silicon nitride(Si3N4)Ceramic
Properties	Unit	Pressureless Sintered	Hot pressed
Bulk Density	Kg/m³	3.2×10³	3.25×10³
Water Absorption	%	0	0
Mechanical
Porosity	%(%)	0	0
Color	-	Black	Black
Flexural Strength	MPa	610	880
Elastic Modulus	GPa	290	300
Vickerts Hardness	GPa	13.9	14.0
Maximun Use Temperature	ºC	1000	1000
Thermal
Thermal Conductivity	W/mk	30	30
Coefficient of Thermal Expansion	10-6/ºC(4.-800ºC)	3.2	3.0
Thermal Shock Resistance(20ºC)	ΔT(C)	550	750
Electrical
Volume Resistivity	ohm*cm	>10^12	---
Dielectric Strength	V/m	10×10^6	---

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Company Profile

Based on quartz and ceramics, after more than 20 years development, Highborn Group has grown up to a modern enterprise in research, manufacture, processing and sales. We are mainly supplying quartz glass, cuvette, precise ceramics, porous ceramics, thick film resistor, ozone generator, metal fiber felt,polyester fiber cotton products and we have been offering our products and services to our clients from more than 115 countries or regions.

Highborn Group is paying great attention to the product quality and technology research all the time. We have passed ROHS, CE, MSDS tests and also the ISO9001 authentication. We have 8 registered trademark and 30 patents. Also in 2020, we won the title of China High-tech Enterprise and Jiangsu Private Science and Technology Enterprises.

We can offer not only qualified products, we can also supplying quality service including design, development, export and after sales. With our professional skills, advanced technology and quality material, we can design and develop new products or new applications according to the clients' expectation.  We have custom-made new products and promoted the specifications for more than 1000 clients, and we have gotten good reputation from our clients.

Certifications

Packaging & Shipping

Package:  Synthetic wooden case padded with foams.

We also received OEM service; the package can be designed according to your requirements.
Shipping: By vessel or by train from any Chinese port, Samples can be delivered by International express.
                                                               


 

After Sales Service

 

FAQ

1:What products and service can you offer us?

Answer: With the development more than 20 years, now we have 6 business division and we are supplying Quartz Glass (Tube, Rod, Plate and customized parts), optical glass and cuvette, and also various precise ceramics, porous ceramics and refractory ceramics. We have the full processing line for ceramic thick film resistors, far infrared ceramic glass heating panel, quartz tube/ceramic plate ozone generator ,porous metal fiber felt and polyester fiber cotton products. For all the products, we can design and customize according to the clients' demand.

2:  Before mass order, can you offer samples? How will you charge for them?
Answer: We are willing to offer samples to lower your purchasing risk. Generally, if from inventory, we can deliver out within 3days, however if need processing, we can deliver out within 15days. For some difficult items, the delivery time will be decided by its grade of difficulty.  For some low value items, we can offer free sample, however we would like you to afford the freight cost. For customized products, we need to charge the developing cost.

3:  What test report or certificate can you offer? What achievements have you made in research and development?
Answer: Till the end of 2021, we have passed many ROHS, CE, MSDS tests and also the ISO9001 authentication. We have 8 registered trademark and 30 patents. Also we won the title of China High-tech Enterprise and Jiangsu Private Science and Technology Enterprises.

4:  Do you have any agent in our area? Can you export your products directly?
Answer: Till the end of 2021, we haven't authorized any company or person as our regional agent. From 2008, we have the export qualification and professional export team, and till the end of 2021, we have exporting our products to more than 115 countries and regions, and our clients can contact us and purchase our products or service directly.

5:  If the quality can not meet the requirement or any loss during the freight, how should we do?
Answer: We have strict QC test and professional QC team. We are always offering qualified products. If anything goes wrong, the quality can not meet requirement on the contract, we will reproduce the qualified products or refund the payment. We have the professional packing team and will pack the product in safe package for long distance delivery.  If any loss during the freight, we hope you can assistant us to claim from the logistics company and we will arrange the replacement accordingly.