99% alumina ceramic spacer

Specifications high temperature 99% alumina ceramic gasket

Excellent wear and abrasion resistance.

High dielectric properties

high hardness

99% alumina ceramic spacer Material: 99 alumina ceramic Density: 3.9 g/cm3 Size:OD8*ID4*2.5mm.   99% Alumina ceramic spacer with below property: 1.high mechanical strength 2.High temperature, Max working temperature: 1700C. 3.good electrical insulation 4.Good chemical corrosion resistance under high temperature. 5.Excellent wear and abrasion resistance 6.Very hardness and Excellent thermal shock 7.Low dielectric loss, high insulation.     Technical Parameter of Alumina.

Material	——	AI-920	AI-950	AI-990	AI-997	AI-999
Texture	——	Al2O3	Al2O3	Al2O3	Al2O3	Al2O3
		>92%	>95%	>99%	>99.7%	>99.9%
Density	g/cm³	3.45	3.50	3.75	3.90	3.92
Bending strength	Mpa	340	300	330	390	390
Compressive strength	Mpa	3600	3400	3800	3900	3900
Elasticity modulus	Gpa	350	350	370	390	390
Impact resistance	Mpam½	4.2	4.0	4.4	5.2	5.5
Weibull Modulus	m	11	10	10	12	12
Vickers Hardness	HV 0.5	1700	1800	1800	2000	2000
Thermal expansion	10^-6K^-1	5.0-8.3	5.0-8.3	5.1-8.3	5.5-8.4	5.5-8.5
Thermal Conductivity	W/mk	18	24	25	28	30
Thermal shock resistance	°C	220	250	250	280	280
Highest Application Temperature	°C	1500	1600	1600	1700	1700

  More about Seamark. Seamark Ceramic has advanced technologies, rich management experiences and equipments to manufacture all kinds of alumina to meet the customers’ requirement. The main material in Seamark ceramic including 96% alumina ceramics (Al2O3),99% alumina ceramics, Zirconia ceramics(ZrO2),Silicon carbide(Sic),Silicon Nitride (Si3N4). Whether you are a tooling manufacture or end user, our specialists are available to provide full engineering and technical support throughout the concept, design, and production stages to ensure maximum performance of our material is obtained.   Tolerance of  Alumina ceramic spacer

Product Name:	Alumina ceramic ring
Size:	According to drawings(Customized)
Material:	zirconia ceramic / Alumina ceramic / Silicon carbide ceramic/ Silicon nitride etc.
Accuracy:	Accuracy Of Machining:+/-0.01mm
	Accuracy Of Grinding:+/-0.005mm
	Surface Roughness:Ra0.02
	Parallelism:0.01mm
	Verticality:+/-0.005mm
	Concentricity:0.01mm
Application:	Pump motor, Car industrial, Chemical, Mechanical Equipment, etc.
Drawing:	JPEG, PDF, CAD, IGS Accepted
services:	Quality assurance, on time delivery. comparative price.
Design:	Design and improvement to meet your individual demands.
Production:	High precision production, high standard and strict requirement.
Quality:	ISO9001 Quality System Management Assurance
Products:	Custom made service for you.
Payment:	T/T,30% Prepaid,70%before shipment.
Logistics:	Air Express or Sea shipment.
Customer Service:	24-hours standby, Critical listening your every suggestion or demand and feedback ASAP.

  Packing details: 1. Standard: carton for export 2. Delivery: As per contract delivery on time 3. Shipping: As per client request. We can accept CIF, Door to Door etc. or client authorized agent we supply all necessary assistant. Product application:    Alumina ceramic spacer is Widely used in the equipments of petroleum, chemical, metallurgy, mine,electricity powder, military industry, aerospace engineering, shipbuilding, etc.   Choose Seamark Ceramic, we are now able to offer following services:   1.Strictly quality control and make sure the precise size.   2.Reasonable price and excellent delivery   3. Professional manufacturer and Reliable ceramic parts provider.   4.Technical support: Experienced designed team and engineer.   We can supply the products according to customer's drawings, samples and performance requirement. If you need any further information, please do not hesitate to contact us .or you can visit our website. We will service you all the time.