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Silicon Nitride Rod | Si3N4 Rod

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Silicon Nitride (Si3N4) Rod is made of ultra-fine ceramic powder by isostatic pressing and high-temperature sintering, making it dense with a 0.0% void ratio. Heeger Materials is a professional supplier and manufacturer of high-quality Silicon Nitride Rods, offering competitive prices and customized solutions to meet specific requirements.

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Data sheet

ColorBlack
Density3.20 g/cm3
MaterialsSi3N4
SizeΦ5×50mm, Φ15×80mm, Φ30×120mm, Φ50×150mm, or customized

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Silicon Nitride (Si3N4) Rod has excellent mechanical strength, fracture toughness, wear resistance, and thermal shock resistance. The maximum working temperature can be up to 1200 ℃. HM can supply high-precision and low-price Silicon Nitride (Si3N4) rods with very tight tolerances and polished surfaces. 

Silicon Nitride Rod | Si3N4 Rod

Silicon Nitride (Si3N4) Rod Specifications

Material

Si3N4

Size

Φ5×50mm

Φ15×80mm

Φ30×120mm

Φ50×150mm

Or customized according to specific requirements.

Surface roughness

Ra 0.025μm (mirror-like glossy surface)

Ra 0.006μm (mirror surface)

Or customized

Tolerance

The best can be achieved at 0.001mm.

Secondary processing

Grinding, Fine grinding, Precision cutting, Drilling, etc.

Silicon Nitride (Si3N4) Material Properties Parameter

Item

Unit

Si3N4

Color

--

Black

Bending strength

MPa

≥700

Young’s modulus

GPa

310

Thermal conductivity

W/(m·k), 25 ℃

≥80

Bulk density

g/cm3

≥3.17

Breakdown strength

KV/mm

≥20

Coefficient of thermal expansion

10-6/K(RT-400℃)

≤2.7

Fracture toughness

MPa·1/2

≥6.5

Vickers hardness

GPa

≥13

Volume resistivity

Ω·cm

≥1014

Dielectric constant

/

7.8

Dielectric loss

10-3

0.4

Surface roughness (Ra)

μm

≤0.8

Camber

Diagonal%

≤3.0

Silicon Nitride (Si3N4) Rod Advantages

  • Heat resistance
    Silicon nitride ceramic rods, high-temperature resistant ceramic shafts for petroleum water pumps, wear-resistant polished silicon nitride waterjet plungers, and other products have excellent heat resistance, can maintain stable physical and chemical properties at high temperatures, and are suitable for high-temperature processes and heat treatment equipment.

  • Wear Resistance
    Silicon nitride ceramic rods exhibit outstanding abrasion resistance, making them highly durable even at high speeds and under high-pressure conditions. They are well-suited for a wide range of applications in liquid and gas transportation and flow control, including pumps, valves, and other equipment.

  • Chemical Stability
    Silicon nitride ceramic rods can resist acid and alkali solutions, corrosive media, and other chemical corrosion, to maintain long-term stability of the use of performance.

  • Precision Processing
    Silicon nitride ceramic rods can be customized through precision machining to meet customer-specific dimensions, shapes, surface finishes, etc., to ensure the accuracy and reliability of equipment.

Silicon Nitride (Si3N4) Rod Applications

  • Petrochemicals
    Silicon nitride ceramic shaft core can be widely used in high-temperature, high-pressure oilfield mining equipment, and can withstand the harsh working environment, to extend the service life of the equipment.

  • Machinery Manufacturing
    Silicon nitride ceramic rods can be used in key components of high-precision machining equipment, such as CNC machine tools, grinding machines, etc., improving machining accuracy and efficiency.

  • Aerospace
    Silicon nitride ceramic rods can be used for key components in high-temperature and high-pressure environments, such as aircraft engines and spacecraft components, to ensure the stable operation and safety of aerospace devices.

  • Water conservancy engineering
    Silicon nitride ceramic rods can be widely used in high-pressure water cutting equipment, which can make the equipment maintain stable working performance.

Where to Buy Silicon Nitride (Si3N4) Rod in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Silicon Nitride Ceramic products, including Silicon Nitride (Si3N4) Rods, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We are a specialized supplier of premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

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