Manufacturing Companies for Ceramic Sealing Ring - Alumina Ceramic Rings – Xindeng

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Dedicated to strict top quality command and considerate purchaser support, our experienced staff customers are always available to discuss your necessities and be certain full client gratification for Tc Oil Seal , Mg1 Mechanical Seals , Ni-Tungsten Carbide Seal , All merchandise are manufactured with advanced equipment and strict QC procedures in purchase to assure high-quality. Welcome prospects new and old to get hold of us for enterprise cooperation.

Manufacturing Companies for Ceramic Sealing Ring - Alumina Ceramic Rings – Xindeng Detail:

Technical Parameters

Operating Limits	Units	Alumina Ceramics	Alumina Ceramics
Alumina Content	wt%	≥ 99	≥ 95
Volume Density	g /cm3	3.85	3.7
Hardness (HRA)	HRA ≥	88	86
Compressive Strength	MPa ≥	400	300
Maximum Temperature	℃	1500	1500
Air Tight Test		Pass	Pass
Thermal Shock Test		Pass	Pass
Coefficient Of Heat Expansion	×10-6/℃	8.2	7.5
Dielectric Constant	εr20℃, 1MHz	9.2	9
Dielectric Loss	tanδ×10-4, 1MHz	2	3
Volume Resistivity	Ω·cm 20℃	1014	1013
Puncture Strength	KV/mm , DC≥	20	20
Acid-resistance	mg/cm2 ≤	0.7	7
Alkali-resistant	mg/cm2 ≤	0.1	0.2
Abrasion Resistance	g/cm2 ≤	0.1	0.2
Compressive Strength	M Pa ≥	2800	2500
Flexural Strength	M Pa ≥	350	200
Elastic Modulus	G Pa	350	300
Poisson’s Ratio		0.22	0.2
Thermal Conductivity	W/m·K( 20℃)	25	20

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Burgmann Mechancial Seals