2019 China high precision ceramic ball supply manufacture
Ceramic Ball Material Specifications Cermaic Type Alumina Oxide Zirconia Oxide Silicon Nitride Composition 99.5% Al2O3 97% ZrO2 87% Si3N4 0.5% other 3% MgO 13% other Hardness 1700HV 800HV 1700HV Ultimate Tensile Strength 31,000 psi 60,000 psi -- Ultimate Compressive Strength >300,000 psi 285,000 psi >570,000 psi Modulus of Elasticity 53 x106 psi 29 x106 psi 44-45 x106 psi Maximum Working Temperature 1750°C/3182°F 1100°C/2012°F 1000°C/1832°F Corrosion Resistance Inert except for hydruofluric and hot concentrated sulphuric acids. Inert to most substances, not recommended for environments of hydrochloric or strong alkaline solutions. Inert to most substances.
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