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Alumina, aluminum oxide (Al2O3) is a major engineering material. It offers a combination of good mechanical properties and electrical properties. It is used more often than any other advanced ceramic material.
Alumina ceramics are commonly subdivided according to their alumina content ranging from 80% to more than 99%. Alumina can be produced in a range of purities with additives designed to enhance properties. Higher purity alumina demonstrates enhanced wear and corrosion resistance.
A wide variety of ceramic processing methods can be applied including machining or net shape forming to produce a wide variety of sizes and shapes of component. In addition, it can be readily joined to metals or other ceramics using metallising and brazing techniques.
Alumina based ceramics are by far the largest range of advanced ceramics made by HaoRui. Due to the important combination of properties, we have thoroughly researched the behaviour and characteristics of our alumina products to give you the best possible component.
Properties of Alumina/Aluminum Oxide (Al2O3)
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.
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 |
SHENZHEN HAORUI INDUSTRIAL provide professional efficient,high-quality services,constantly innovate in technology and products, We can customize it exclusively for you. Whether it's the look you want or the functionality you're looking for, we'll give you a complete solution!
Shenzhen Haorui Industrial Technology Co., Ltd
Established in June 2006, 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.
A:We are a professional manufacturer of ceramic parts. we are factory.
A: All parts can be customized according to you drawings and will meeting your requirements perfectly.
A: Of course, we will consider discounts for large-volume orders.
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.
A: Of course, welcome your arrival, please contact us in advance and make an appointment.
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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
Alumina, aluminum oxide (Al2O3) is a major engineering material. It offers a combination of good mechanical properties and electrical properties. It is used more often than any other advanced ceramic material.
Alumina ceramics are commonly subdivided according to their alumina content ranging from 80% to more than 99%. Alumina can be produced in a range of purities with additives designed to enhance properties. Higher purity alumina demonstrates enhanced wear and corrosion resistance.
A wide variety of ceramic processing methods can be applied including machining or net shape forming to produce a wide variety of sizes and shapes of component. In addition, it can be readily joined to metals or other ceramics using metallising and brazing techniques.
Alumina based ceramics are by far the largest range of advanced ceramics made by HaoRui. Due to the important combination of properties, we have thoroughly researched the behaviour and characteristics of our alumina products to give you the best possible component.
Properties of Alumina/Aluminum Oxide (Al2O3)
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.
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 |
SHENZHEN HAORUI INDUSTRIAL provide professional efficient,high-quality services,constantly innovate in technology and products, We can customize it exclusively for you. Whether it's the look you want or the functionality you're looking for, we'll give you a complete solution!
Shenzhen Haorui Industrial Technology Co., Ltd
Established in June 2006, 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.
A:We are a professional manufacturer of ceramic parts. we are factory.
A: All parts can be customized according to you drawings and will meeting your requirements perfectly.
A: Of course, we will consider discounts for large-volume orders.
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.
A: Of course, welcome your arrival, please contact us in advance and make an appointment.
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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