Is the product customizable?

Yes, length is customizable, and we offer full customization, minor customization, and flexible customization from samples or designs.

What are the available alumina purity levels?

We offer Aluminum Oxide Ceramic Gaskets with alumina content ranging from 95% to 99%.

What is the minimum order quantity?

The minimum order quantity is 1 Ton.

What are the payment terms?

We accept T/T and Western Union for payment.

What is the lead time for production?

The average lead time is one month for both peak and off-peak seasons.

What certifications does the company hold?

The company is ISO 9001, ISO 14001, and ISO 45001:2018 certified.

What are the main applications for this product?

It is suitable for chemical processing, high-temperature furnaces, metallurgical, electrical, petrochemical, medical, and textile industries.

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Flexible Payment Options:: Supports credit cards (Visa/MasterCard), PayPal, Apple Pay, Google Pay, many local payment methods and T/T (bank transfer).

Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer

Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd

3 yrs

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Product Highlights

Customizable Dimensions: Length can be customized to meet specific application requirements.
Superior Hardness: Features Mohs hardness of approximately 9 for extreme wear resistance.
Excellent Corrosion Resistance: Resists chemical corrosion in harsh processing environments.
High Dielectric Strength: Offers exceptional resistance to electrical breakdown and high insulation.
Durable Mechanical Strength: Impact-resistant even when dropped from 3 meters with flexural strength >300 MPa.
High Purity Options: Available in 95% and 99% alumina content for superior performance.
ISO 9001 Certified: Manufactured under a guaranteed quality management system.

Product Attributes

Customization: Available
Application: Chemical Processing, High-Temperature Furnaces
Ceramic Tube & Rod: Ceramic Rod
Model NO.: RJ-2940
Length: Customized
Temperature Resistance: 2000℃
Color: White
Shape: Round
Usage: Industry Usage
Feature: Insulation
Advantage: Wear-Resisting/High Temperature Resistance
Density: 3.8g/cm3
Type: Ceramic Parts
Transport Package: Carton
Specification: Customizable
Trademark: RONGJIAN
Origin: Pingxiang, China
Package Size: 50.00cm * 50.00cm * 20.00cm
Package Gross Weight: 25.000kg

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Shipping Cost:: Contact the supplier about freight and estimated delivery time.

Online Trading Protection

Payment Guarantee: Platform-protected payments with refund support for eligible order issues.
Platform Logistics: Clearer shipment tracking with platform-supported logistics.
Inspection Service: Optional pre-shipment inspection for quality and quantity checks.
After-Sales & Dispute Handling: Platform-assisted dispute resolution, including refunds or returns when applicable.

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Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer

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Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer
Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer

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Product Description

Aluminium Oxide Ceramic Flat Gasket 95% 99% Alumina Washer

Aluminum Oxide Ceramic Gasket

Aluminum oxide ceramic gaskets are high-performance components fabricated from alumina (Al₂O₃) as the primary material through high-temperature sintering. The alumina content typically ranges from 95% to 99%, with higher purity grades offering superior performance. These gaskets exhibit exceptional material properties, including:

Dense microstructure and extreme hardness (Mohs hardness ~9).
Outstanding thermal stability, withstanding temperatures up to 2000°C.
Excellent corrosion resistance, electrical insulation, and wear resistance.
Key Characteristics
1.Physical Properties

High dielectric strength and resistance to electrical breakdown.
Exceptional mechanical strength (e.g., impact-resistant even when dropped from 3 meters).
2.Thermal Performance

Operating range exceeding 1600°C with minimal thermal expansion.
3.Mechanical Properties

Flexural strength >300 MPa, ensuring durability under dynamic loads.

Product Parameters

	Name	99 porcelain	95 porcelain	Zirconia
	Main ingredients	Al2O3≥99%	Al2O3≥95%	ZrO2≥94%
Physical properties	Density	3.85	3.6	5.9
	Water Absorption %	0	0	0
	Sintering temperature °C	1690	1670	1650
Quality characteristics	Hardness HV	1700	1600	1400
	Flexural strength 4pt	≥3500	≥2900	≥11000
	Compressive strength /cm²	30000	25000	25000
Thermodynamicproperties	Maximum service temperature °C	1500	1400	1600
	Coefficient of thermal expansion	8	7.8	10
	10-6/°C
	0-1000°C
	Heat shock resistance (°C)	200	220	350
	Thermal conductivity W/m.k	31	22	3
Electrical characteristics	Volume resistivity Ω.cm	≥1012	≥1012	≥1012
	Breaking strength of insulation KT/m	18	16	15
	Dielectric constant 1MHZ(E)	9.2-10.5	9.0-10	12.5

Application

Metallurgical industry

Electrical industry

Electrical heating industry

Petrochemical industry

The medical industry

The textile industry

Company Profile

Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd.

Innovative Solutions for Environmental & Industrial Applications
Headquarters: Xiangdong District Industrial Park, Pingxiang City, Jiangxi Province, China

Core Capabilities
Advanced Manufacturing: Custom-designed towers and systems in ceramic, metal, and plastic materials.
Comprehensive Product Portfolio: 200+ specifications including:
• Ceramic/metal/plastic packing materials
• Molecular sieves & activated alumina
• Catalysts & petrochemical additives
• Activated carbon & eco-friendly filtration media
Turnkey Services: Full-scale pollution control and wastewater treatment projects.
Corporate Strengths
ISO 9001 Certified - Guaranteed quality management system compliance.
300+ Workforce - Including 100+ specialized engineers and technicians.
30-Acre Production Base - Integrated R&D and manufacturing facilities.

Awards & Innovations
National Science & Technology Achievement Award
Provincial Gold Medal & Famous Brand Product
17 Patented Technologies - Protecting proprietary advancements..

Packaging & Shipping

FAQ

About the Supplier

This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI249998". Items marked "" are certified.

Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd

Company Profile

Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd.

Company Profile

Established in 2010, Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd. is a high-tech enterprise specializing in the R&D, production, and sales of chemical packing and environmental protection materials. After 14 years of rapid development, the company has become a leading global supplier of industrial packing materials, with products exported to over 100 countries and regions. We employ more than 300 staff, including nearly 100 technical professionals, forming a highly skilled and experienced R&D and production team.

Corporate Strength & CertificationsAuthorized Certifications: Certified with ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health & Safety Management System.

Technological Leadership: Holds 17 national patents and has been awarded multiple national-level "High-Quality Product" titles.

Production Capacity: Modern manufacturing facilities with an annual output exceeding 10, 000 tons, capable of meeting large-scale global demand.

Core Products & ApplicationsOur main products include:

Ceramic Packing: Ceramic balls, structured ceramic packing, and random ceramic packing, featuring high-temperature resistance, corrosion resistance, and durability for harsh industrial conditions.

Adsorption & Catalytic Materials: Molecular sieves, catalysts, and activated alumina, widely used in petrochemical and gas purification industries.

Environmental Filtration Media: Activated carbon and filtration materials for wastewater and exhaust gas treatment.

Metal & Plastic Packing: Lightweight and corrosion-resistant structured/random packing for diversified industrial needs.

These products are extensively applied in domestic industries such as power generation, petroleum, chemical processing, metallurgy, environmental protection, and pharmaceuticals, as well as in high-end sectors including aerospace. They are also exported to Europe, North America, Southeast Asia, the Middle East, and other global markets, earning long-term trust from customers for their superior quality.

Quality & Service CommitmentAdhering to the principle of "Quality First, Innovation Driven, " we implement strict quality control from raw material selection to production, ensuring stable and reliable product performance. We provide customized solutions, technical consultation, and after-sales support to deliver lasting value to our clients.

Vision for the Future

Rongjian Environmental Protection will continue to innovate in the field of industrial packing materials, promoting sustainable industrial development through advanced technology, and striving to become the most trusted global partner for our customers.

About Our Factory & Business Background

Address: No. 1-269, Zone B, Xiangdong Industrial Park, Xiangdong District, Pingxiang, Jiangxi, China
Terms of Payment: T/T, Western Union
International Commercial Terms(Incoterms): FOB, EXW, CIF, DAP, FCA
Average Lead Time: Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays
Nearest Port: Shanghai Port
Minimum Order Quantity: 1 Ton
Supply Chain Partners: 1

Our Production Capability & Technical Expertise

Main Products: Ceramic Ball, Pall Ring, Molecular Sieve, Honeycomb Ceramic, Activated Alumina, Structured Packing, Metal Random Packing, Plastic Random Packing, Ceramic Random Packing
Production Lines: 2
Production Machines: Furance, Electric Kiln, Drying Furnace, Screening Machine
QA/QC inspectors: 3 people
Inspection Type for Finished Products: Random inspection(Visual inspection & Function inspection)
Inspection Method for Finished Products: Have instruction but no written records
Customization Options: Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
OEM Service Available: Yes
R&D Engineers: 5 people
Traceability of Raw Materials: Yes

Our Industry Experience & Global Business Record

Export Year: 1 Years
Main Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Eastern Asia, Western Europe
Repeat Buyers Choice: 50%~80%
Number of Foreign Trading Staff: 5
Overseas Agent/Branch: No
New Products Launched in Last year: No

Our Certifications, Standards & Industry Recognition

Management System Certification: ISO9001:2015, ISO14001, ISO45001:2018

FAQ

Is the product customizable?: Yes, length is customizable, and we offer full customization, minor customization, and flexible customization from samples or designs.
What are the available alumina purity levels?: We offer Aluminum Oxide Ceramic Gaskets with alumina content ranging from 95% to 99%.
What is the minimum order quantity?: The minimum order quantity is 1 Ton.
What are the payment terms?: We accept T/T and Western Union for payment.
What is the lead time for production?: The average lead time is one month for both peak and off-peak seasons.
What certifications does the company hold?: The company is ISO 9001, ISO 14001, and ISO 45001:2018 certified.
What are the main applications for this product?: It is suitable for chemical processing, high-temperature furnaces, metallurgical, electrical, petrochemical, medical, and textile industries.