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Silicon Nitride Si3N4 Sealing Pipe / Valve Wear Resistant

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Silicon Nitride Si3N4 Sealing Pipe / Valve Wear Resistant

Name: Silicon Nitride Si3N4 Sealing Pipe Valve Wear Resistant
Brand: KEGU
Price: 200 USD

Wholesale Silicon Nitride Si3N4 Sealing Pipe / Valve Wear Resistant from china suppliers

Brand Name : KEGU

Place of Origin : China

Price : 200-500 yuan/kg

Payment Terms : L/C,D/A,D/P,T/T,Western Union,MoneyGram

Supply Ability : 2,000 pcs/month

Packaging Details : Strong wooden box for Global shipping

Model Number : Customizable

Material : Silicon Nitride

Composition:SiC : ＞85%

Color : Black

Density : 3.20-3.26g/cm3

Max. Service Temp : 1450℃

Flexural Strength : 250MPa

Sample : Customizable

Chemical Stability : High

Apparent Porosity : 0-0.1%

Elastic Modulus : 300-320GPa

Compression Strength : >1500MPa

Vickers Hardness(HV0.5) : 15-16GPa

Thermal Conductivity : 20-25W/(m.k)

Specific Resistivity : 10^14Ω·cm

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Product Description

Engineered for extreme industrial environments, our high-performance silicon nitride ceramic sealing components deliver unmatched durability and reliability in aluminum processing applications. These materials offer superior thermal and mechanical properties, forming the foundation for innovative equipment like the L-shaped high thermal conductivity submerged heating appliance.

Silicon Nitride Si3N4 Sealing Pipe / Valve Wear Resistant

Why Silicon Nitride for Sealing Applications?

Unmatched Performance:

Optimal for Low-Pressure Die Casting: High density, strength, and exceptional thermal shock resistance (ΔT 400–500°C) make Si3N4 the premier choice for sealing tubes and valves.
Superior Wear Resistance: Outperforms aluminum titanate and alumina ceramics, ensuring long-term airtightness and reducing maintenance frequency.
Excellent High-Temperature Strength: Maintains structural integrity under frequent thermal cycling, ensuring prolonged service life.

Design & Installation Note:
While silicon nitride offers exceptional strength, its ceramic nature requires careful handling. Avoid large mechanical shocks by ensuring proper design and installation of lifting and transmission equipment.

Silicon Nitride Si3N4 Sealing Pipe / Valve Wear Resistant

Technical Property Comparison: Silicon Nitride vs. Alternative Materials

Category	Property	Unit	99% Al₂O₃	S-SiC	ZrO₂	Si₃N₄
Physical	Density	g/cm³	3.9	3.1	6.0	3.2
	Water Absorption	%	0	0.1	0	0.1
	Sintering Temperature	°C	1700	2200	1500	1800
Mechanical	Hardness (HV)	HV	1700	2200	1300	1400
	Flexural Strength	MPa	~343	~392	~882	~686
	Compressive Strength	MPa	~2942	~1961	~1961	~2255
Thermal	Max Working Temperature	°C	1500	1600	1300	1400
	Thermal Expansion Coefficient (0-1000°C)	10⁻⁶/°C	8.0	4.1 (0-500°C)	9.5	2.0 (0-500°C)
				5.2 (500-1000°C)		4.0 (500-1000°C)
	Thermal Shock Resistance	ΔT (°C)	200	250	300	400-500
	Thermal Conductivity (25°C)	W/m·K	31	100	3	25
	Thermal Conductivity (300°C)	W/m·K	16	100	3	25
Electrical	Volume Resistivity (20°C)	Ω·cm	>10¹²	10⁶–10⁸	>10¹⁰	>10¹¹
	Dielectric Strength	kV/mm	18	Semiconductor	9	17.7

Key Benefits for Your Operation:

Extended Component Lifespan: Reduced downtime and replacement costs.
Consistent Sealing Performance: Maintains airtight integrity under thermal stress.
Enhanced Process Reliability: Minimizes leaks and process interruptions in die casting.

Applications: Sealing pipes, valves, and bespoke components for low-pressure die casting machines, aluminum transfer systems, and high-temperature industrial fluid handling.

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