99 alumina
99 alumina ceramics are often used in chemical and physical grinding environments, especially high purity alumina is a very good material used to produce wear-resistant components. These components include shafts, pistons, bearings and mating end seals, which are mainly used in chemical and physical conditions and are good corrosive media. These components can be used to manufacture products supported by circulating pumps, reciprocating pumps and resonators.
The use of ceramic injection moulding and grinding can produce a variety of complex components with strict surface smoothness and smoothness requirements. At the same time, Kezhong's manufacturing process can also meet the requirements of small-scale and batch production. These components are frequently used in water resources management, medical, automotive, telecommunications and household appliances applications. If you are interested in our 99% alumina parts, we will welcome you to use high purity alumina. The high purity alumina we provide you will show once again the extremely high hardness and wear resistance of alumina ceramics.
Thermal properties of 99% alumina
High compressive strength
Volume density pore opening porosity 20 C 1000 C 20 C
3.83 g/cm3 0% 345 Mpa 145 Mpa 2550 Mpa
239 lbs/ft3 0% 50 ksi 30 ksi 370 ksi
Flexural strength
Conductive expansion coefficient 20 C 800 C 20-1000 C
29 W/m degree K 7.2 W/m degree K 8.4 x 10-6/C degree
201 BTU.in/ft2.hr degree F 50 BTU.in/ft2.hr degree F 4.7 x 10-6/F degree
Use temperature (no load) = 1700 C 3092 F
. AP35 99% alumina
99% alumina
99.0% alumina
0.7% silicon oxide
0.07% MgO
0.07% ferric oxide
0.05% sodium oxide
0.03% calcium oxide
99% alumina attributes
Alumina has high melting point, high hardness and high mechanical strength, although the mechanical strength temperature is reduced to more than 1000 degrees C.
The thermal shock stability decreases with the increase of relatively large thermal expansion coefficient.
Alumina is an electrical insulating material with high resistivity. It also has good chemical stability of alumina, so it has good corrosion resistance.
Alumina is insoluble in water but slightly soluble in strong acid and alkaline solutions.
99% alumina application
Alumina is a mature engineering ceramics, which provides excellent electrical insulation, high hardness and wear resistance, but relatively low strength and fracture toughness.
Different types of alumina are usually white, but sometimes pink (88% alumina) or brown (96% alumina). The color comes from Formation of additives or impurities in raw materials.
High compressive strength
Volume density pore opening porosity 20 C 1000 C 20 C
3.83 g/cm3 0% 345 Mpa 145 Mpa 2550 Mpa
239 lbs/ft3 0% 50 ksi 30 ksi 370 ksi
Flexural strength
Conductive expansion coefficient 20 C 800 C 20-1000 C
29 W/m degree K 7.2 W/m degree K 8.4 x 10-6/C degree
201 BTU.in/ft2.hr degree F 50 BTU.in/ft2.hr degree F 4.7 x 10-6/F degree
Use temperature (no load) = 1700 C 3092 F
. AP35 99% alumina
99% alumina
99.0% alumina
0.7% silicon oxide
0.07% MgO
0.07% ferric oxide
0.05% sodium oxide
0.03% calcium oxide
99% alumina attributes
Alumina has high melting point, high hardness and high mechanical strength, although the mechanical strength temperature is reduced to more than 1000 degrees C.
The thermal shock stability decreases with the increase of relatively large thermal expansion coefficient.
Alumina is an electrical insulating material with high resistivity. It also has good chemical stability of alumina, so it has good corrosion resistance.
Alumina is insoluble in water but slightly soluble in strong acid and alkaline solutions.
99% alumina application
Alumina is a mature engineering ceramics, which provides excellent electrical insulation, high hardness and wear resistance, but relatively low strength and fracture toughness.
Different types of alumina are usually white, but sometimes pink (88% alumina) or brown (96% alumina). The color comes from Formation of additives or impurities in raw materials.
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