EURASIAN STEEL BALL
Ceramic Ball
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Ceramic balls are particularly suited to harsh environments.Their main advantages over steel is that they have a density of 40% lower than steel.Have 29% lower thermal expansion and are 150% harder.In certain high-speed applications their life is extended by as much as a hundred times. The three main materials used are Alumina Oxide,Zirconia Oxide and Silicon Nitride.The following chart shows comparisons between the three.
| Ceramic Ball | |||
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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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Changzhou Eurasian Steel Ball Co.,Ltd.
Contact Person: Jerry
Fax: +86-519-88406678
Mobile Phone: +86-13584517925
Add: No. 555, Changhe Road, Ninghe Village, Zhenglu Town, Tianning District, Changzhou City
Zip: 213025
E-mail: jerry@cnballs.cn
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