Alumina Fasteners

Boron Carbide Parts China, Advanced Ceramics Division supplies high-quality and competitive price advanced Alumina Fasteners products.

SKU: O13-F

Alumina Fasteners

Alumina ceramic is the most common technical material and relatively traditional ceramic. High purity alumina has excellent performances in electrical insulation, high chemical resistance, and low thermal expansion. Alumina Fasteners (nuts, screws, washers, bolts) are used to make parts for CVD, ion implants, photolithography, and semiconductor. Alumina fasteners are made of materials with very low thermal expansion coefficient and excellent wear resistance. We also provide zirconia fasteners.

Specifications of Alumina Fasteners

Material	Al2O3
Purity	99%-99.8%
Density	3.8~3.9 g/cm3
Size	Customized

Specifications of Typical Alumina Ceramics

Composition	UNIT	AL97	AL98
AL2O3 Purity	%	97	99.8
Color	N/A	White	Ivory
Tensile	Kpsi	30	32
Flexural	Kpsi	55	60
Compressive	Kpsi	300	330
Density	g/cc	3.70	3.92
Hardness	HV, GPa	13.8	18
Thermal Conductivity	W/ (m K)	25	32
C.O.T.E.	In / In°C (x107)	77	78
Working temperature	°C	1500	1750
Dielectric Constant	N/A	9.5	9.8
Volume Resistivity	Ohm-cm	>10¹⁴	>10¹⁵
Dielectric Strength	KV/mm	16	20

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. Boron Carbide Parts China, Advanced Ceramics Division provides alumina products according to your specified instruction or does its best to meet requirements.

Application

-Spare parts for pan-semiconductor equipment (manufacturing equipment such as LCD and LED)

-Insulation

-Wear parts

-General machinery, hydraulic components

-Used as injector tubes, gas nozzles, and insulators.

-High-temperature situations & a protector for high-temperature thermal couples.

Packing of Alumina Fasteners

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.