Silicon Nitride Ceramic Rod Si3N4 Bar

Silicon nitride ceramic rod is produced with high purity silicon nitride powder as raw material, adding a small amount of sintering additives and sintering under high temperature conditions. It has high hardness, good wear resistance, high temperature and corrosion resistance, and has excellent mechanical properties and chemical stability, can be used to make a variety of mechanical structure parts, kiln roller and support rod.

Brand:
ATCERA
Item NO.:
AT-SNR-0001

Materials
Silicon Nitride (Si3N4) Ceramic
Shapes
Rod
Applications
Mechanical Parts , Petrochemical Industry

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Properties of Silicon Nitride Ceramic Rod

1. High temperature resistance

Silicon nitride ceramic rod has high temperature stability, can maintain stable chemical and mechanical properties at high temperatures, and good oxidation resistance.

2. Small thermal expansion coefficient

Silicon nitride rod thermal expansion coefficient is small, so at high temperature the thermal stress is small, it can maintain stable mechanical properties at high temperature.

3. Good corrosion resistance

Silicon nitride rod can work stably in corrosive media such as acid, alkali and salt for a long time, and is suitable for bearing work in acid and alkali environment.

Applications of Si₃N₄ Rod

Silicon nitride ceramic rod can be used to manufacture various mechanical parts, such as transmission shaft, roll, support rod, hydraulic rod, etc., and can also be used to manufacture high-temperature kiln components, such as roller and support rod.

Size Chart of Si3N4 Ceramic Rod

We are committed to delivering optimal silicon nitride rods tailored to your exact specifications. Our dedicated team ensures meticulous adherence to your instructions, striving to exceed customer expectations. Additionally, we offer the flexibility of customized sizes to accommodate your unique requirements.

Drawing and product parameter requirements shall be provided if customized design request.

Machining Precision:

diameter tolerance: ±0.005mm

hole depth tolerance: ±0.01mm

surfance roughness:Ra0.05

cylindricity:±0.004mm

concentricity:±0.003mm

parallelism:±0.003mm

Send Requirements for Custom Design

Silicon Nitride Ceramic Rod Circular
Item NO.	Diameter (mm)	Length (mm)	Purity (%)
AT-SNR-0001	2	20	85-99
AT-SNR-0002	2	50	85-99
AT-SNR-0003	3	20	85-99
AT-SNR-0004	3	50	85-99
AT-SNR-0005	4	12	85-99
AT-SNR-0006	4	50	85-99
AT-SNR-0007	5	12	85-99
AT-SNR-0008	6	12	85-99
AT-SNR-0009	6	30	85-99
AT-SNR-0010	6.75	22	85-99
AT-SNR-0011	7.5	100	85-99
AT-SNR-0012	8	30	85-99
AT-SNR-0013	10	40	85-99
AT-SNR-0014	10	100	85-99
AT-SNR-0015	12	10	85-99
AT-SNR-0016	12	40	85-99
AT-SNR-0017	15	10	85-99
AT-SNR-0018	15	40	85-99
AT-SNR-0019	20	10	85-99
AT-SNR-0020	20	40	85-99
AT-SNR-0021	25	10	85-99
AT-SNR-0022	25	40	85-99
AT-SNR-0023	30	40	85-99
AT-SNR-0024	2-80	20-200	85-99

Silicon Nitride Ceramic Bar Rectangular
Item NO.	Width of Cross Section (mm)	Height of Cross Section (mm)	Length (mm)	Purity (%)
AT-SNR-1002	5	5	40	85-99
AT-SNR-1003	10	10	70	85-99
AT-SNR-1004	35	22	60	85-99
AT-SNR-1005	40	32	100	85-99
AT-SNR-1006	60	20	105	85-99
AT-SNR-1007	75	75	90	85-99

Technical Data of Silicon Nitride Materials

Si3N4 Type	Gas pressure sintering Si3N4	Hot pressing sintering Si3N4
Density (g/cm³)	3.2	3.3
Flexture strength (MPa)	700	900
Young Modulus (GPa)	300	300
Poisson's ratio	0.25	0.28
Compressive strength (MPa)	2500	3000
Hardness (GPa)	15	16
Fracture toughness (MPa*m^1/2)	5~7	6~8
Maximum working temperature (℃)	1100	1300
Thermal conductivity (W/m*K)	20	25
Thermal expansion coefficient (/℃)	3*10^-6	3.1*10^-6
Thermal shock resistance (ΔT ℃)	550	800

*This chart illustrates the standard characteristics of the silicon nitride materials commonly employed in the manufacturing of our Si₃N₄ products and parts. Please be aware that the attributes of customized silicon nitride products and parts may vary depending on the specific processes involved. Detailed parameter is decided by type and composition of stabilizing agent.

Usage Instructions

1. Keep clean

When use silicon nitride ceramic rod, it is necessary to keep the rod clean to avoid impurities, so as not to affect the performance and service life.

2. Temperature control

Working temperature of the silicon nitride ceramic rod needs to be controlled within an appropriate range, too high or too low temperature shall be avoided to not affect the performance and service life.

3. Correct installation

When install the silicon nitride rod, avoid using too much force or excessive rotation to avoid damage.

4. Regular inspection

In the process of use, it is necessary to regularly check wear of the silicon nitride rod, and replace the seriously worn rod in time to ensure normal operation of equipment.

Valuable Information

Si₃N₄ Rod Packing

Silicon nitride ceramic rods are carefully packaged in appropriate containers to avoid any potential damage.

Customization Advantages

1. According to your application scenario, analyze the needs, choose the appropriate material and processing plan.

2. Professional team, quick response, can provide solutions and quotations within 24 hours after confirming the demand.

3. Flexible business cooperation mechanism, support at least one piece of quantity customization.

4. Quickly provide samples and test reports to confirm that the product meets your needs.

5. Provide product use and maintenance suggestions to reduce your cost of use.

Ask a Free Quote

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FAQ

Do you supply the materials unlisted on your website?

Although our primary focus is on advanced ceramic materials such as alumina, zirconia, silicon carbide, silicon nitride, aluminum nitride, and quartz ceramics, we are always exploring new materials and technologies. If you have a specific material requirement, please contact us, and we will do our best to fulfill your needs or find suitable partners.

Can you aid in material selection & ceramic product design?

Absolutely. Our technical team possesses profound knowledge of ceramic materials and extensive experience in product design. We are happy to provide you with material selection advice and product design support to ensure optimal performance for your products.

Do you have a minimum order value requirement?

We do not have a fixed minimum order value requirement. We always focus on meeting our customers' needs, and we strive to provide quality service and products regardless of the order size.

What services beyond ceramic products do you offer?

In addition to ceramic products, we also provide a range of additional services, including but not limited to: customized ceramic processing services based on your needs, using blanks or semi-finished blanks produced by yourself; if you are interested in outsourced ceramic packaging and metallization services, please contact us for further discussion. We are always committed to providing you with a one-stop solution to meet your various needs.

Do you offer international shipping services?

Yes, we do. No matter where you are located globally, we can ensure the safe and timely delivery of your order.

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