Silicon Nitride Mechanical Ceramic Ring Si3n4 Ring

• Customization: Available
• Application: Electronics, Electric Insulation
• Type: Ceramic Ring, Ceramic Rings
• Model NO.: BBXSN006
• Density: 3.0-3.2g/cm3
• Surface: Can Be Polished
• Dielectric Loss: 25
• Rockwell Hardness: 91-92
• Breaking Tenacity: 5-6 MPa M1/2
• Elasticity Modulus: 290-320gpa
• Thermal Expansivity: 600m/K *10-6/ºC
• Weibull Modulus: 10-18m
• Keyword: Silicon Nitride Ceramic Roller
• Keyword1: Si3n4 Ring
• Sintering Process: Gas Pressurized
• Maximum Working Temperature: 1200ºC
• Compressive Strength: 2500 MPa
• Fracture Toughness: 6.0 Mpam1/2
• Sizing: Standard and Customized
• Transport Package: Wooden Box or Carton
• Specification: ROHS
• Trademark: HB
• Origin: Jiangsu/China
• HS Code: 8547100000
• Production Capacity: 3000 PCS/Month
• Package Size: 30.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

Customized Si3N4 ceramic rings

Custom silicon nitride ceramic parts are tailor-made structural components manufactured via professional sintering and precision diamond machining. Benefiting from its high toughness, thermal shock resistance, molten metal non-sticking property and corrosion resistance, we customize various special-shaped rods, sleeves, pins, blocks and fixtures for aluminum casting, semiconductor, high-temperature furnace and precision machinery industries. All products can be customized in size, tolerance, surface finish and material grade to meet unique extreme working condition requirements.

Superior Properties Supporting Custom Machining

1. Mechanical performance High room & high-temperature flexural strength (600–1050 MPa), fracture toughness 6–9 MPa·m1/2, high Vickers hardness, outstanding wear resistance and self-lubricating property. Custom moving parts like shafts, pins and rollers achieve long service life.

 

2. Thermal stability Low thermal expansion coefficient (~3.2×10-6/K), withstand rapid hot-cold alternation without cracking. Continuous working temperature: 1000°C in air, up to 1400°C under inert atmosphere. Ideal for custom high-temperature furnace and molten metal accessories.

 

3. Chemical inertness Resistant to most acids, alkalis and molten aluminum, zinc, magnesium and tin alloys. The surface cannot be wetted by molten light metals, so customized ejector pins, stirring rods and casting sleeves avoid metal adhesion.

 

4. Electrical insulation High volume resistivity, anti-high voltage breakdown, suitable for custom insulating structural parts in power electronics and semiconductor equipment.

 Notes for Silicon Nitride Ceramic Customization

1. Silicon nitride is ultra-hard, all precision machining requires diamond tools, so complex deep internal thread or ultra-thin ultra-large structures need technical evaluation in advance

 

2. Long-term service above 1100°C in air will cause slow oxidation; anti-oxidation coating customization is recommended for such working environments

 

3. Provide detailed technical parameters when placing custom orders: Working temperature, load, medium environment, dimensional drawings, tolerance and surface requirements

 

We provide full customization based on customers' drawings, samples or technical requirements:

· Standard blanks: Solid rods, hollow tubes, square blocks, round plates

· Precision custom parts: Stepped shafts, threaded pins, flanged sleeves, grooved positioning blocks, thin-wall bushings, special-shaped fixtures

· Micro small custom components and large-size high-temperature structural pieces

 

Technical Specifications

(Custom configurations available upon request.)

Physical	Color	-	Gray
	Density	g/cm3	3.24-3.26
	Relative Density	%	>99
	Size stability	-	Excellent
Mechanical	Compressive Strength Ratio(25℃  )	-	488
	Vicker’s hardness	GPa	14-18
	Modulus of Elasticity(25℃)	GPa	65
	Roisson’s Ratio	-	0.25
	Fracture Toughness	MPa*m1/2	6.0-9.0
	Specific Resistant Ratio	-	1018
	Corrosion Resistance	-	Excellent
Thermal	Thermal Conductivity (25℃)	w/(m.k)	15-20

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FAQ

Q1: Can you provide exclusive customized solutions for special project demands? 
A1: Yes. In addition to conventional OEM and ODM customization, we can develop exclusive product structures, adjust technical parameters and optimize solutions according to special project standards, regional industry specifications and personalized buyer requirements, providing one-to-one customized technical support.
 
Q2: Do you support third-party factory inspection and product random testing? 
A2: We support on-site factory audit and offline random inspection by buyers or authoritative third-party institutions. Our standardized production process, complete quality records and standardized management system can comply with mainstream international factory inspection standards.
 
Q3: How do you ensure on-time delivery for bulk orders? 
A3: We have a scientific production scheduling system and sufficient material reserve chain. According to order quantity and delivery cycle, we will formulate a detailed production plan, arrange special personnel to track progress in real time, and effectively avoid delivery delays to ensure stable and punctual shipment of bulk and urgent orders.
 
Q4: Why is your factory price more stable than trading companies? 
A4: As a direct manufacturer, we control all links from raw material procurement, production processing to finished product output. There is no intermediate markup, and we can adjust costs according to long-term cooperative orders, maintaining stable and transparent pricing for long-term strategic partners.
 
Q5: What customized service items can you support besides product structure? 
A5: Besides structural size and precision tolerance customization of industrial ceramic and quartz products, we support personalized services including custom deep processing, surface treatment, laser marking, custom packaging and technical document customization to meet different industrial and brand standards.