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99% Alumina Ceramic Mechanical Seal Ring

  • Very good electrical insulation.
  • Moderate to extremely high mechanical strength.
  • Very high compressive strength.
  • High hardness.
  • Moderate thermal conductivity.
  • High corrosion and wear resistance.
  • Good gliding properties.
  • Low density.
  • Operating temperature without mechanical load 1,000 to 1,700°C.
  • Bioinert and food compatible.
Availability:
Quantity:
  • 01034

  • HaoRui

  • custom01001

Overview

99% Alumina Ceramic Mechanical Seal Ring

Alumina ceramic sealing ring is a key component commonly used in encapsulated equipment and high temperature environments.

It is widely used in many fields, such as aerospace, chemical and power industries, for its outstanding performance and reliable sealing.

Alumina ceramic sealing ring has a wide range of applications, the following is the introduction of its main application scenarios: 

1) Aerospace: In aerospace equipment, alumina ceramic sealing ring can be used for sealing and insulating in the engine and gas turbine, which is able to withstand the high temperature and high pressure environment, to ensure the normal operation of the equipment.

2) Chemical industry: Alumina ceramic sealing rings can be used in chemical equipment to seal high temperature reaction vessels and pipelines, effectively isolate the leakage of harmful gases and liquids, ensure process safety and environmental protection.

3)Electric power field: In electric power equipment, alumina ceramic sealing rings are commonly used in the insulation and sealing of generator sets and transformers to improve the safety and stability of the equipment and prolong the service life.

4) Petrochemical field: alumina ceramic sealing ring can be used in oil refining device and chemical reactor sealing, can withstand high temperature and corrosive media erosion, to ensure the normal operation of equipment and product quality.

Product Description

Alumina Ceramic Mechanical Seal Ring

Alumina is the most cost effective and widely used material in the family of engineering ceramics. The raw materials from which this high performance technical grade ceramic is made are readily available and reasonably priced, resulting in good value for the cost in fabricated alumina shapes. With an excellent combination of properties and an attractive price, it is no surprise that fine grain technical grade alumina has a very wide range of applications.

Key Properties
• Hard, wear-resistant
• Excellent dielectric properties
• Good thermal conductivity
• Excellent size and shape capability
• High strength and stiffness

Typical Uses
• Gas laser tubes
• Electronic substrates
• Seal rings
• High temperature electrical insulators
• High voltage insulators
• Thermometry sensors
• Ballistic armor

SHENZHEN HAORUI INDUSTRIAL is to focus on the needs of customers,all for the sake of customers,in the principle of good faith,we provide professional efficient,high-quality services,constantly innovate in technology and products,surpass ourselves,strive for excellence,and achieve a win-win situation.Any dimension requirement, please contact us.

900X900-WM3

Company Information

Shenzhen Haorui Industrial Technology Co., Ltd was established in June 2006, and it has specialized in the research & development, fabrication and sales of non-standard industrial ceramics, hard alloy (such as tungsten steels), metals and non-metal precision machinery parts for 18 years.

The company has a strong technical level in the processing and manufacturing of industrial ceramics (i.e. zirconia, alumina, silicon nitride, silicon carbide, aluminum nitride, etc.), hard alloys (such as tungsten steels,) non-standard precision parts. The company holds many leading technologies in this field. Moreover, the company has a group of professional technicians with strong technical development abilities and over 10 years working experiences.Most importantly, the company also has a complete production process and quality management system, as well as a complete set of precisely machining equipments and inspection facilities.

Designer (1)
FAQ

Q: Are you a factory or a trading company

A:We are a professional manufacturer of ceramic parts. we are factory.

Q:Do you only supply standard parts or can customized parts according to our drawing?

A: All parts can be customized according to you drawings and will meeting your requirements perfectly.

Q:Can the price be negotiated

A: Of course, we will consider discounts for large-volume orders.

Q:Can you guarantee the product?

A: Yes, we promise to provide quality assurance for all products, inspect according to your drawings and issue an inspection report. If you are not satisfied with our product quality or service, please feel free to give us feedback.

Q:Can I visit your factory?

A: Of course, welcome your arrival, please contact us in advance and make an appointment.

Q:Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q.What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.If you have another question, pls feel free to contact us as below:

sales@szhr-tech.com




Properties of Alumina(Al2O3)


Property
Item
95% Al2O3
99% Al2O3
99.8%Al2O3
Unit
Mechanical Characteristics
Color
White
light yellow
Ivory

Bulk Density
3.7
3.85
3.93
g/cm3
Water Absorption
0
0
0
%
Bending Strength
300
310
370
MPa
Compressive Trength
2,300
2,400
2500
MPa
Elastic Modulus
320
340
390
GPa
Fracture Toughness
3~4
3~4
4
MPa m1/2
Weber Coefficient
12
12
12
m
Vickers Hardness
1,400
1,600
1850
HV 0.5
Thermal Characterics
Coefficient of Line Thermal
Expansion
7~8
7~8
7~8
10-6 K-1
Thermal Conductivity
20
29
32
W/mK
Thermal Shock Resistance
(Put in Water)
250
200
280
ΔT °C
Max Working Temperature
1,500
1,600
1700
°C
Electrical Characteristics
Volume Resistance At 20°C
>1014
>1014
>1014
Ωcm
Dielectric Strength
15×106
15×106
15×106
V/m
Dielectric Constant
9
10
10
εr
One MHZ Dielectric Loss Angle
at 20°C
0.0004
0.0002
0.0001
tanδ
Chemical Characteristics
Nitric Acid (60%) 90°C
0.1
0.1
0.05
24H WT Loss mg/cm2
Sulphuric Acid (95%) 95°C
0.3
0.34
0.22
Caustic Soda (30%) 80°C
0.9
0.95
0.04


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Founded in June 2006, Shenzhen Haorui IndustriaI Technology Co.,Ltd. is a professional enterprise engaged in R&D, manufacturing and sales of non-standard industrial ceramics, hard alloys (tungsten steel) and various metal and non-metal precision machinery parts.

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