Fenghua Mingxing Ceramics Factory is a company that produces all kinds of ceramic structural parts.
Alumina ceramic is the most widely used material in industrial ceramics. Alumina ceramics have both excellent performance and low cost. We can provide dry pressing, isostatic pressing, injection molding and other processes for you to prepare alumina ceramic materials. These processes provide possibilities for the production of diverse products. we can also provide high precision machining.

Alumina ceramics are widely used in pump and valve industry, electrical industry, chemical industry, medical industry and automobile industry.

Properties of Alumina

High Temperature Ability

Alumina ceramics can withstand high temperatures from 1300 to 1650.


Properties of Alumina

High Hardness and Wear Resistance

The wear resistance of alumina exceeds most common materials. Therefore, it is often used for valve cores, mechanical seals, sharpeners and grinding media.


Properties of Alumina

Electrical Insulation

Alumina ceramics have very good insulation properties and are often used in the electrical industry. Combined with the ceramic metallization process, it is an important high-voltage insulation material.

Properties of Alumina

Corrosion Resistance

Alumina ceramics have good alkali resistance, and some specially formulated alumina ceramics have strong acid resistance. Therefore, alumina ceramics have a very important position in the chemical industry.
We Supply
Several Different Alumina Ceramics

99%-99.5%,99% Alumina Ceramic,99 Alumina

A high alumina content alumina ceramic. As the alumina content increases, the pores inside the ceramic decrease, the density increases, and the wear resistance, high temperature resistance, acid and alkali resistance are improved. Often used in refractory materials, pump valve accessories, chemical equipment accessories.


One of the most commonly used industrial ceramic materials has good wear resistance, alkali resistance and high temperature resistance. Because of its low cost and mature process, it is widely used in various fields.


A low alumina alumina ceramic material, low sintering temperature is his advantage. It also has very good insulation properties. It is a good choice for the household appliance industry.
Mechanical Units of Measure 95%-96% Aluminum Oxide 99%-99.5% Aluminum Oxide
Density gm/cc (lb/ft3) 3.65-3.72 3.89-3.92
Color white /ivory ivory
Flexural Strength MPa (lb/in2x103) 345 379
Elastic Modulus GPa (lb/in2x106) 300 375
Shear Modulus GPa (lb/in2x106) 124 152
Bulk Modulus GPa (lb/in2x106) 172 228
Compressive Strength MPa (lb/in2x103) 2100 2600
Hardness Kg/mm2  1100 1440
Fracture Toughness KIC MPa•m1/2  3.5 4
Maximum Use Temperature °C (°F) 1600 1700
Thermal Conductivity W/m•°K (BTU•in/ft2•hr•°F) 25 35
Coefficient of Thermal Expansion 10–6/°C (10–6/°F) 8.2 8.4
Specific Heat J/Kg•°K (Btu/lb•°F) 880 880
Dielectric Strength ac-kv/mm (volts/mil) 14.6 16.9
Dielectric Constant @ 1 MHz 9 9.8
Dissipation Factor @ 1 kHz 0.0011 0.0002
Volume Resistivity ohm•cm >1014  >1014 
Made from magnesium silicate, steatite ceramics offer a more advanced option to work as an electrical insulator. These ceramics offer strength, durability, and insulation. Because of their outstanding insulation properties, steatite is used in the designing and formation of thermostats. This material is a key ceramic component in an array of residential and commercial electrical parts.
Silicon carbide, also known as carborundum, is a ceramic product made up of silicon and carbon atoms bonded in a crystal lattice. It has the chemical formula SiC. Silicon carbide is extremely hard, with low density, low thermal expansion and high thermal shock resistance. Not susceptible to harm by molten salts, alkalis or acids, it also displays extremely high levels of chemical inertness. Because of its superior characteristics, silicon carbide can be labeled as an engineering, technical or advanced ceramic.

It is popular for use in the high stress environments of industrial and commercial settings. Some of the sectors in which silicon carbide is most commonly used include the abrasion, automotive, electrical conduction, semiconductor and structural industries. It is a common component of brake discs, bearings, seals, heat exchangers and grinding machines. In addition, in grit form, it is often used to create decorative glassware and the ground glass used in photographic equipment.
Mechanical SI/Metric (Imperial) SI/Metric (Imperial)
Density gm/cc (lb/ft3) 3.1 -193.5
Color black
Flexural Strength MPa (lb/in2x103) 550 -80
Elastic Modulus GPa (lb/in2x106) 410 -59.5
Compressive Strength MPa (lb/in2x103) 3900 -566
Hardness Kg/mm2  2800
Fracture Toughness KIC MPa•m1/2  4.6
Maximum Use Temperature °C (°F) 1650 -3000
Thermal Conductivity W/m•°K (BTU•in/ft2•hr•°F) 120 -830
Coefficient of Thermal Expansion 10–6/°C (10–6/°F) 4 -2.2
Specific Heat J/Kg•°K (Btu/lb•°F) 750 -0.18
Dielectric Strength ac-kv/mm (volts/mil) semiconductor
Volume Resistivity ohm•cm 102–106  dopant dependent
Zirconia ceramics are ceramic materials made from zirconium oxide (ZrO2) with high chemical inertness and very high thermal expansion as well as a very high resistance to wear and to crack propagation. It has the highest toughness and strength at room temperature of all the advanced ceramic materials. It’s high thermal expansion (a=11 x 10-6/K) makes it similar to some types of steel. It also has excellent thermal insulation and low thermal conductivity: 2.5 to 3 W/mK. Zirconia ceramics have fine grain size, which allows for sharp edges and smooth surfaces. It also has the ability to conduct oxygen ions, and this can be used for the measuring of oxygen partial pressures in lambda probes.
These properties make zirconia ceramics ideal for joining ceramic and steel, and other applications such as knives, pump shafts, metal-forming tools, tweezers, fixtures, scissors, auxiliaries in welding processes, tools for wire forming, materials for crowns and bridges in dentistry, and insulating rings in thermal processes. Some common zirconia ceramics products include zirconia plate, zirconia rod, zirconia tube, and zirconia ball. Zirconia ball valves, for instance, can be an ideal substitute for monal and titanium valves, as they offer low cost and longer working life.


The main products of Mingxing Ceramic include ceramic seal ring, ceramic shaft, alumina ceramic rod and discs, steatite ceramic insulator, etc. 


  Zhangjia Village, Shangtian Town, Fenghua, Ningbo, China.


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