Gas Press Silicon Nitride

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Silicon Nitride (Si₃N₄) is 60% lighter than steel but strong enough to survive some of the most demanding applications in a variety of industries. This lightweight, high-strength ceramic material is used as an alternative to stainless steel, super alloys, tungsten carbides and first-generation ceramics such as Al₂O₃ and ZrO₂. It offers excellent thermal shock resistance and high fracture toughness, compatibility with nonferrous metal melts, and improved structural reliability compared to other ceramic materials.

This material data has been provided by Innovacera.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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23.0 °C

3.21 g/cm³

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Elastic modulus

23.0 °C

330 GPa

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Flexural strength

23.0 °C

610 MPa

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Hardness, Vickers

23.0 °C

1417 [-]

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Plane-Strain Fracture Toughnes

23.0 °C

6 - 7 MPa·√m

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Poisson's ratio

23.0 °C

0.25 [-]

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Coefficient of thermal expansion

23.0 °C

3E-6 - 3.2E-6 1/K

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Specific heat capacity

23.0 °C

660 J/(kg·K)

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Thermal conductivity

23.0 °C

15 - 20 W/(m·K)

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Thermal shock parameter R2

550 W/m

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Dielectric strength

23.0 °C

13 kV/mm

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Electrical resistivity

23.0 °C

1.00E+16 Ω·m

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Technological properties

Application areas

High precision silicon nitride ceramic balls, roller for bearing, pump valve, Thermocouple Protection Sheaths, Electric heating element, Weld Location Pins

Processing methods

Gas Press Sintering, Cold Isostatic Press, Dry Press, Precision Machining Processing