2pcs M8 M16 M2x8 M5x12 Alumina Ceramic Screws Bolts Nuts Fasteners Hex Head 20mm 25mm
Price:
$1.00/Pieces >=1 Pieces
MOQ:
50 Pieces
Delivery Time:
Negotiable
Brand:
BPT
Product Description
Alumina ceramics is a ceramic material with alumina (Al2O3) as the main body. Alumina ceramics have a series of excellent properties such as high mechanical strength, high insulation resistance, high hardness, wear resistance, corrosion resistance, high temperature resistance, and light weight. It is widely used in textile, petrochemical, construction, machinery, electronics, biomedicine and other industries. It is currently the most widely used new ceramic material in oxide ceramics with the largest production and sales volume.
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Alumina ceramic performance table
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Property
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Item
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Data
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Unit
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99.8%
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99%
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95%
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Mechanical Characteristics
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color
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Ivory
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light yellow
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White
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-
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density
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3.93
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3.85
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3.7
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g/cm3
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Bending Strength
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370
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310
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300
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MPa
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Compressive trength
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2,500
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2,400
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2,300
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MPa
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Elastic Modulus
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390
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340
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320
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GPa
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Fracture Toughness
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4
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3~4
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3~4
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MPa m^1/2
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Weber Coefficient
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12
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12
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12
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m
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Vickers Hardness
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1,850
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1,600
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1,400
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HV 0.5
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Thermal Characterics
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Coefficient of Line Thermal
Expansion
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7~8
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7~8
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7~8
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10^-6 K^-1
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Thermal Conductivity
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32
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29
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20
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W/mK
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Thermal Shock Resistance
(Put in Water)
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280
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200
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250
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ΔT °C
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Max Working Temperature
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1,700
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1,600
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1,500
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°C
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Electrical Characteristics
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Volume Resistance at 20°C
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>10^14
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>10^14
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>10^14
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Ωcm
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Dielectric Strength
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15×10^6
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15×10^6
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15×10^6
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V/m
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Dielectric Constant
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10
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10
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10
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εr
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One MHZ Dielectric Loss Angle
at 20°C
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0.0001
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0.0002
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0.0004
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tanδ
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Chemical Characteristics
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Nitric Acid (60%) 90°C
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0.05
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0.1
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0.1
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WT Loss mg/cm^2/day
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Sulphuric Acid (95%) 95°C
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0.22
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0.34
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0.3
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Caustic Soda (30%) 80°C
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0.04
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0.95
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0.9
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Product Image
What Can We Do
We can provide a variety of high-performance engineering ceramics.
Silicon Nitride Ceramics (Si3N4)
Silicon nitride exceeds other ceramics in thermal shock resistance. Its strength does not deteriorate at elevated temperatures, hence it is most appropriate for engine and gas turbine parts, including turbo charger rotors, diesel engine glow plugs and hot plugs.
Alumina Ceramics (Al2O3)
Alumina is the most widely used type of ceramic. Its high dielectric properties are beneficial in electrical products, Alumina offers corrosion and wear resistance and high strength. It is widely used for industrial machine parts.
Silicon Carbide Ceramic (SiC)
Silicon carbide retains its strength at elevated temperatures as high as 1400℃. It has the highest corrosion resistance of all fine ceramic materials. Applications include mechanical seals and pump parts.
Zirconia Ceramics (ZrO2)
Zirconia ceramic has the highest strength and toughness at room temperature of all engineering ceramics. Before zirconia, ceramics were considered impractical for scissor or knife applications. With its excellent surface smoothness, zirconia is also used for pump parts.
Aluminum Nitride Ceramics(AIN)
Aluminum nitride ceramics are usually gray or off-white. It has a low thermal expansion coefficient, excellent insulation performance, heat resistance, and a thermal conductivity of more than 180W/(m.k). It is an ideal package heat dissipation material for large integrated circuits.
Machinable Glass Ceramic
Machinable glass ceramics are fluorophlogopite mica glass ceramics with synthetic mica as the main crystal phase. The main components are fluorophlogopite and glass with silica as the main component. Contains 55% fluorophlogopite and 45% borosilicate glass matrix.
Microporous Ceramic Plate
Microporous ceramics refer to ceramic bodies containing a large number of open or closed tiny pores. The material is mainly alumina or carbonized. The surface is firm, the pores are uniform, the porosity is 35-40%, and the pore size ranges from 1 to 100 microns.
Boron Nitride(h-BN)
Boron nitride material has the characteristics of resistance to high temperature and heat cycle. It will not react with many metals, ceramic rare earths and other materials, nor will it contaminate the product. Will not break in hot and cold environments.
Other Ceramics
Our company can process a variety of ceramic materials and cemented carbide. We are currently processing experimental splines for many research institutes and schools. You can provide materials and we can process them according to drawings.
We can provide products according to your drawings or samples and performance requirements.
Ceramic shaft and sleeve
Plane processing
Ceramic micro hole machining
Ceramic processing thread
Ceramic complex shaped parts
Ceramic parts polishing
Packaging & shipping
The sturdy shock-resistant and drop-proof packaging ensures the safety of the product during transportation.
Cooperate with world-class logistics companies to ensure the timeliness of transportation.
FAQ
Q: Are you a factory or a trading company
A: We are a professional manufacturer of ceramic parts. we are factory.
Q:Do you only supply standard parts or can customized parts according to our drawing?
A: All parts can be customized according to you drawings and will meeting your requirements perfectly.
Q:Can the price be negotiated
A: Of course, we will consider discounts for large-volume orders.
Q:Can you guarantee the product?
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.
Q:Can I visit your factory?
A: Of course, welcome your arrival, please contact us in advance and make an appointment.
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, 30% T/T in advance ,balance before shippment.If you have another question, pls feel free to contact us as below:
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Company
Jiangsu BPT Precision Ceramics Co., LTD
Location
Yixing Industrial Park, Jiangsu Province
Contact Person
Wu