99% Al2O3 Alumina Ceramic Sheet Blank Plate

Injection moulded 99% alumina blanks and finished plates, MOQ 1 piece.

machinery
electronics
chemicals
petroleum

99% Al2O3 Alumina Ceramic Sheet Blank Plate specification
Size	Customized
Color	White, black
MOQ	1 pcs
Sample time	4-7 working days

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Overview

White injection moulding 99% Al2O3 alumina ceramic sheet blank plate. High hardness, high strength, wear resistance, corrosion resistance, high temperature resistance of 1600 degrees, good heat dissipation, good insulation performance and high cost performance.

Key Benefits

High hardness
High strength
Wear resistance
Corrosion resistance
High temperature resistance of 1600 degrees
Good heat dissipation
Good insulation performance
High cost performance

Problems It Solves

A polymer insulator softens long before the assembly reaches process temperature.

Application Scenarios

Special environment and electronic substrates
Pump seals
Wear resistant inserts
Insulating washers or bushings
Semiconductor components
Aerospace components
Automotive sensors
Electrical or electronic insulators

Who It Is For

Electronics And SemiconductorSubstrates, insulators and vacuum chuck plates

Specifications

99% Al2O3 Alumina Ceramic Sheet Blank Plate specification
Size	Customized
Color	White, black
MOQ	1 pcs
Sample time	4-7 working days

Material Data

99% Alumina Ceramic Properties
Item	Unit	Typical value
Physical Properties
Color		Ivory/Beige
Density	g/cm3	3.85
Alumina Content	%	99%
Gas permeability		0
Water Absorption		0
Mechanical Properties
MONS' Hardness	Grade	9
Rockwell Hardness	HRA	92
Vickers Hardness (Hv50)	Gpa(Kg/mm2)	15.7 (1600)
Flexural Strength (20C)	Mpa	330
Compressive Strength (20C)	Mpa	2000
Fracture Toughness (20C)	MPam1/2	4
Modulus of Elasticity	Gpa	350-400
Thermal Properties
Thermal Conductivity (20C-400C)	W(m.K)	27.5
Thermal Expansion Coefficient	10-6/C	7.6
Thermal Shock Resistance	dT C	200
Maximum Use Temperature	C	1650
Electronic Properties
Dielectric Strength	KV/mm	> 10
Dielectric Constant	Er	9.1
Dielectric Loss Angle (1MHz)		0.0002-0.0003
Volume Resistivity (20C)	ohm.cm	> 10^14

Manufacturing Process

Material And Drawing ReviewWe start from your drawing, sample or performance requirement and confirm which of the five material families fits the duty.
Powder Preparation And FormingDry pressing, hot pressing or injection moulding, chosen by the shape and the wall thickness of the part.
High Temperature SinteringParts are sintered to full density. Zirconia reaches 6.0 g/cm3 and 99% alumina reaches 3.85 g/cm3.
Grinding Polishing And CNCSurface grinding, internal and external diameter grinding and precision CNC machining bring the part to final size and finish.

Quality Control

We promise to provide quality assurance for all products. Parts are inspected according to your drawings and we issue an inspection report with the shipment.

We follow standard packaging protocols to protect your products during transit and provide photographic documentation of the packing and shipping process for your reference. In the event of transportation damage caused by non-human factors, we arrange a free replacement shipment.

From raw material preparation, forming, surface grinding, internal and external diameter grinding, to precision CNC machining, all processes are carried out in house under strict quality control.

See the full quality page

Customisation Options

Size and shape made to your drawing
Material grade selected against the duty rather than assumed
Surface finish, including ground and polished faces
Colour where the material allows it
Metallizing and plating where the part has to braze into an assembly

Our main business is OEM and ODM. Send your drawing over WhatsApp or email and we will quote the part.

Comparison With Other Materials

Published values from our own material tables
Property	Zirconia	Alumina	Steatite
Flexural strength	Zirconia 800 MPa	99% alumina 330 MPa	Steatite relatively high
Fracture toughness	Zirconia 9.0 MPam1/2	99% alumina 4 MPam1/2	Not published
Max use temperature	Zirconia not rated here	99% alumina 1650C	Steatite 1100C
Thermal conductivity	Zirconia 2.5 W(m.K)	99% alumina 27.5 W(m.K)	Good
Density	Zirconia 6.0 g/cm3	99% alumina 3.85 g/cm3	Talc based
Dielectric strength	Zirconia not published	99% alumina >10 KV/mm	Excellent

Read the full material comparison

Use Guide

Confirm the fit before you order volumeTake a free sample first. Samples ship in 4 to 7 working days and we do not charge for the part, only the freight.
Give the critical dimension a toleranceCeramic is ground to size after sintering. Marking one dimension as critical is cheaper than treating them all as critical.
Handle by the body, not the edgeCeramic is hard but it chips. Zirconia tolerates handling far better than alumina because its fracture toughness is more than twice as high.
Tell us the duty, not just the shapeTemperature, fluid, load, speed, and whether the part has to insulate or stay non-magnetic, all change which grade we would quote.

Questions About This Part

Can this part be made to our drawing?

Yes. We can supply the products according to the customer's drawings, samples and performance requirement.

What is the minimum order quantity?

1 pcs

How long does a sample take?

Sample delivery is 4 to 7 working days, free of charge, freight not included.

What are the payment terms?

Payment up to 1000 USD is 100% in advance. Above 1000 USD it is 50% T/T in advance with the balance before shipment.

How will the parts be packed?

We follow standard packaging protocols and provide photographic documentation of the packing and shipping process for your reference.

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Get A Price On 99% Al2O3 Alumina Ceramic Sheet Blank Plate

Send the drawing, the quantity and the duty. Samples are free and take 4 to 7 working days.