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durable fine industrial ceramic Alumina Ceramic Washer With High Precision

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durable fine industrial ceramic Alumina Ceramic Washer With High Precision

Country/Region	china
City & Province	jiangsu
Categories	Steel Sheets

Product Details

Alumina ceramic washer

1. Description

Alumina, or Aluminum Oxide, is a durable fine industrial ceramic that is commonly used in a variety of processing applications. Grind sintered alumina ceramics only using a diamond tool. Alumina ceramic exhibits exceptional hardness and wear resistance, as well as low corrosion, excellent electrical insulation and bio-inertness. Alumina (Al2O3) is a very heat-stable ceramic material of excellent temperature stability. Al2O3 ceramics with a purity of 95% to 99% are the most commonly used kind of technical ceramics. UNIPRETEC offers a variety of alumina ceramic shaping methods, including molded injection, die pressing, slip casting, extrusion, and cold isostatistically pressing.

Alumina is used in a wide spectrum of purity concentrations, ranging from ultrapure to added-substance grades. Although the purity of Al2O3 in finished products usually ranges between 90 and 99.8%, UNIPRETEC tends to work with materials with a purity of 95 to 99 percent.

2.Specificaion of Alumina ceramic

Accept any size according to the drawings

Material Properties

ITEM	UNIT	Alumina \| A950	Alumina \| A990
Main Content	-	95% Al2O3	99% Al2O3
Color	-	White / Pink	Ivory
Density	g/cm3	3.7	3.85
Vickers Hardness	Gpa	14	17
Flexural Strength	Mpa	310	360
Compressive Strength	Mpa	2,200	2,500
Electrical Resistivity	Ω·cm	>1014	>1014
Dielectric Strength	KV/mm	15	17
Dielectric Constant	1 MHz	8	9
Thermal Conductivity	W/m.K	25	29
Max. Working Temperature	℃ / °F	1,500 / 2,730	1,650 / 3,000
Resistance to Thermal Shock	△T(℃)	210	230
Thermal Expansion Coefficient (25 - 1,000 ℃)	10-6/K	7 - 9	7 - 9

Product Features

√ High Voltage Insulator	√ High Purity, Max. 99.8%	√ Various Available Grades
√ Hard and Wear Resistant	√ High Corrosion Resistance	√ High Mechanical Strength
√ Good Thermal Conductivity	√ High Operating Temperature	√ Most Favorable Fine Ceramic