Alumina Fasteners

Edgetech Industries, Advanced Ceramics Division supplies high-quality and competitive price advanced Alumina Fasteners products.

SKU: O13-F

Alumina Fasteners, Al2O3 Ceramic Fasteners, Nuts, Washers, Screws

Alumina fasteners mainly include ceramic screws, nuts, washers, etc. It has relatively stable physical stability and chemical stability. Physical stability is mainly reflected in high and low-temperature resistance, insulation, anti-magnetic, wear resistance, etc.; chemical stability is mainly reflected in corrosion resistance, oxidation resistance, etc. However, since it is a hard and brittle material, its mechanical properties cannot be compared with metal materials at present. Of course, with the advancement of material technology and the improvement of product structure, the gap between the two is gradually narrowing.

Specifications of Alumina Fasteners

Item	Unit	Al2O3
Physical Property
Color	\	Ivory
Density	g/cm3	3.7-3.9
Purity	%	95~99.8
Gas Permeability	\	0
Water Absorption		0%
Mechanical Properties
Vickers Hardness	GPa	12.3-17.2
Flexural Strength	MPa	300-380
Compressive Strength (HV0.5)	MPa	2000-2350
Elastic modulus	GPa	270-380
Fracture Toughness	MPam^1/2	3.5-4
Thermal Properties
The Max Working Temperature	℃	1650
Thermal Conductivity at room temperature	W/m·k	20-32
Coefficient of Thermal Expansion	10-6/℃	6.5-7.2
Thermal Shock Resistance	△T℃	200
Electrical Properties
Dielectric Strength	KV/mm	10-15
Dielectric Constant		9-10
Dielectric Loss Angle(1MHz)		0.0002-0.0003
Volume Resistivity	Ω·cm	>10¹⁴

The above chart just demonstrates the typical properties of common alumina ceramic we use to produce our alumina parts. Please notice that the properties of customized alumina parts vary due to different processing. Edgetech Industries, Advanced Ceramics Division provides alumina products according to your specified instructions or does its best to meet requirements.

Application

Alumina fasteners have excellent characteristics such as high-temperature resistance, good electrical insulation, non-magnetic, corrosion-resistant, environmentally friendly and beautiful, and never rust. They are not only comparable to traditional plastic screws and metal screws, but also the performance of ceramic screws has been continuously improved in recent years, and the application field has become wider and wider. In some fields, they have continuously replaced and replaced traditional screws.
-Aerospace industry (insulation and anti-interference devices on electronic equipment)
-Electronic industry (insulation, anti-interference, lightweight)
-Medical equipment industry (insulation, non-magnetic, environmentally friendly, anti-interference, making medical machinery and equipment safer to use)
-Petrochemical industry (high-temperature resistance, chemical resistance, corrosion resistance, extending the service life of the equipment)
-Communication industry (insulation, non-magnetic, safety)
-Ship industry (acid resistance, alkali resistance, corrosion resistance, extending service life), etc.

Packing

As a ceramic material, Alumina Fasteners are quite fragile in a lot of cases. Our Alumina Ceramics are carefully handled to minimize damage during storage and transportation. Suitable outer boxes and inner cushioning materials are used, and vacuum packing is also engaged for some of the parts.