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Shanghai Vital Industry Co., Ltd.
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Shanghai Vital Industry Co., Ltd.
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ceramic seal ring
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Origin:
China
Payment Method:
L/C
Have the excellent performance of Good sealing, Excellent Resistant-Corrosion, High-Temperature Resistance , High Mechanical Strength, High hardness , Stable chemical property , Wear Resistant, High Thermal Conductivity, Good Self-Lubrication, High purity alpha alumina and low silica content, Small Tolerance Range , Long Time Warranty, Stably and Professional Quality Control.
Surface Treatment: Polished, Alumina Purity: 95% to 99.5% , Color: White, Creamy.
Sizes: Various sizes available
Technology Spec.:
95% , 96% , 99% , 99.5% , 99.6% Alumina Ceramic Ring
Density g/ cm3 e3.68
Water absorption % O
Sintering temperature ° C 1600-1800
Hardness HV e1500
Flexural strength Kgf/ cm2 3000
Compressive strength Kgf/ cm2 25000
Fracture toughness Map.m3/ 2 3~ 4
Maximum temperature ° C 1800
Coefficient of thermal expansion / ° C 8* 10-6
Heat shock T( ° C) 220
Thermal conductivity W/ m.k( 25-300° C) 25 14
20° C > 1012
Volume resistivity 100° C > .cm 1012-1013
300° C > 1010
Insulation breakdown strength KV/ mm 18
dielectric constant 100MHz( E) 9.5
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