Alumina Ceramic Screw/hook/insuator/99 alumina ceramic thread

Product Overview

Description

STA Alumina Ceramic Screw/hook/insuator/99 alumina ceramic thread

 

1. product description 

Alumina ceramic is the most mature of the engineering ceramics, offering excellent electrical insulation properties together with high hardness and good wear resistance but relatively low strength and fracture toughness.Alumina Ceramics are generally white but may also be pink (88% alumina), or brown (96% Alumina). The colour is derived from either the sintering additives or impurities in the raw materials. INNOVACERA produces a range of high purity alumina ceramics in the range of 96% - 99.9% purity.

 

2. Physical Properties:

• Good electrical insulation

• High mechanical strength

• Excellent wear resistance

• Excellent corrosion resistance

• Low dielectric constant

3.Main Applications:

1)Pump seals and other components

 

2)Wear resistant inserts

 

3)Insulating washers or bushings

 

4)Semiconductor components

 

5)Aerospace components

 

6)Automotive sensors

 

7)Electrical or electronic insulators

 

4. Technical parameters:

 

Material	Unit	85% alumina ceramics	95% alumina ceramics	99.5% alumina ceramics
Density	G/cm3	2.7	3.65	3.85
Highest application temperature	°C	1100	1500	1800
Bending strength	Mpa	150	300	340
Compressive strength	Mpa	900	3400	3600
Hardness	HV0.5	800	1800	2000
Insulation breakdown strength	KV/mm	10	15	18
Processing technology
Process range (mm)
Outside Diameter	1---300
Inside Diameter	0.5---300
Length	0.5---1200
Accuracy of working (mm)
Perpendicularity	0.01
Concentricity	0.01
Roundness	0.005
Straightness	0.005
Parallelism	0.01
Planeness	0.005
Roughness	0.05
Fit clearance	0.005