1.Precision dimension 2.Mechanical seals good 3.Polishing surface 4,Shaped as your designing and requirement

  95%--99% AL2O3 ceramic bushing, ceramic plunger  Material: Alumina 95% -99.5%  Customized production is available, for more information, please do not hesitate to  tell me.Dimension, Tolerance, Surface Roughness, Concentricity, Perpendicularity and  others.

 Main applications:

 The enterprises of Eletricity ,smelt,mechanism,colliery,mine,chemical,cement,oil  field ,will choose the different products according to their special requirments for the wearable mechanical instruments that works in the system of coal transfer,material transfer,milling,dust removing,and so on.

      Property

Items	Unit	95%Al2O3	99.5%Al2O3
Density	g/cm3	3.7	3.9
Flexural Strength	MPa	313	340
Compressive Strength	MPa	3400	3600
Modulus of Elasticity	GPa	350	380
Impact Resistance	MPa·m1/2	4	5.1
Weibull Modulus	m	10	10
Vickers Hardness	HV0.5	1800	1900
Thermal Conductivity	W/mk	24	27
Highest Application Temperature	°C	1600	1750
Volume Resistivity at 20°C	Ω.cm20	>1014	>1014
Dielertric strength	KV/mm	20	25
Thermal expansion	X10-6/K	5.0-8.3	5.4-8.3

                                                   

reliable joint and high intensity Alumina ceramic plunger