high temperature alumina ceramic bushing sleeve parts

high temperature resistance alumina Ceramic Bushing sleeve

Reputation depends on quality, quality comes from Hard!

Alumina Ceramic:

Alumina is a white solid, also known as bauxite in mining, ceramics and materials science.Alumina is only second to silicon oxide in the earth. It is one of the ceramic raw materials, aluminum and oxygen in the oxide.Strong bonding, which gives alumina the highest hardness in oxides, high chemical stability and excellent corrosion resistance for most acidic, alkaline, salt and molten solutions.Alumina has many isomorphous crystals, and there are currently more than 10 kinds of crystals, mainly three crystal forms, namely α-Al2O3, β-Al2O3, and γ-Al2O3. Among them, the structure has different properties, and is almost completely converted into α-Al2O3 at a high temperature of 1300 ° C or higher.The corundum in nature is the most densely packed α-shaped hexagon, with melting point, high hardness, insoluble in acid and alkali, corrosion resistance and good insulation.

properties:

High hardness, high strength, wear resistance, corrosion resistance, high temperacture (1600°), good thermal diffusivity, good insulativity, low cost etc.

Data Sheet↓

Item	Unit	Typical Values
Physical Properties
Color	white
Density	g/cm3	6.0
Zirconia Content	%	94.4%
Gas permeability	0
Water Absorption	0
Crystal Size	um	0.5
Mechanical Properties
Rockwell Hardness(45N)	R45N	78
Vickers Hardness (Load 500g)	Gpa(Kg/mm²)	11.5(1175)
Flexural Strength(20°C)	Mpa	800
Compressive Strength(20°C)	Mpa	2000
Modulus of Elasticity(20°C)	Gpa	＞200
Fracture Toughness(20°C)	MPam1/2	9.0
Thermal Properties
Thermal Conductivity(20°C-400°C)	W(m.K)	2.5
Thermal Expansion Coefficient	10-6/°C	9.6
Thermal Shock Resistance	△T°C	250

Application industry: Machinery, electronic, chemical, petroleum etc.
Specific application: Electrical ceramic substrate, plunger, sealing ring etc.

Company Information:

Shenzhen Hard Precision Ceramic CO.,Ltd founded in 2007, located in Shenzhen of China.

We are a company that integrates development, design, molding, sintering, production and sales of precision ceramic products. After 10 years of development, we have cooperated with more than 2000 customers and 60 universities; Our factory covers an area of 2000 square meters, 50 employees, and annual production value of nearly 20 million. We have a higher visibility and better reputation in the same industry.Our products include ceramic rods, tubes, plates, blocks and precision parts for industrial. We have all-line high precision equipments from ceramic forming, sintering to precision machining. Hope for a wide range of sincere cooperation with customers at home and abroad.

Why Choose Us?
1.12 years of professional production industrial ceramics factory
2.High quality products with low price
3.High precision parts with lowest tolerance
4.Show time for production
5.Has a group of experienced, professional and efficient R&D team
6.Has a good reputation in China and abroad.

7.MOQ is not limited, small quantity is welcome.

8.Vigorous team and good after-sales service

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FAQ

Q: Are you trading company or manufacturer ?
A: We are factory.

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.

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, 50% T/T in advance ,balance before shippment.

Contact Us

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Product Categories : Alumina Ceramics > Alumina Ceramic Block