al2o3 Alumina Ceramic sleeves washer bushing
Reputation depends on quality, quality comes from Hard!
Information: The hardness of corundum powder can be used as abrasive, polishing powder, high temperature sintered alumina, called artificial corundum or artificial gemstone, which can be used to make diamonds in mechanical bearings or watches. Alumina is also used as a high-temperature refractory material, refractory bricks, enamel, porcelain, artificial gems, etc., and alumina is also a raw material for smelting aluminum. Calcined aluminum hydroxide can produce γ-Al 2 O 3 . γ-Al2O3 has strong adsorption and catalytic activity and can be used as adsorbent and catalyst. The main component of corundum is α-Al2O3. Barrel or cone shaped cubic crystals. There is a glass luster or diamond luster. The density is 3.9 to 4.1 g/cm3, the hardness is 9, and the melting point is 2000 ± 15 °C. Do not dissolve in water, and are not soluble in acids and bases. High temperature resistance.
High hardness, high strength, wear resistance, corrosion resistance, high temperacture (1600°), good thermal diffusivity, good insulativity, low cost etc.
Data Sheet↓ Color: White/Ivory Density: 6.0g/cm3 Zirconia Content: 94.4% Gas permeability: 0 Water Absorption: 0 Crystal Size: 0.5um Rockwell Hardness(45N): 78R45N Vickers Hardness (Load 500g): 11.5(1175)Gpa(Kg/mm²) Flexural Strength(20°C): 800Mpa Compressive Strength(20°C): 2000Mpa Modulus of Elasticity(20°C): 9.0 MPam1/2 Thermal Conductivity(20°C-400°C): 2.5W(m.K) Thermal Expansion Coefficient: 9.6 10-6/°C Thermal Shock Resistance: 250 △T°C
Application industry: Machinery, electronic, chemical, petroleum etc. Specific application: Electrical ceramic substrate, plunger, sealing ring etc.
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
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.
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