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Kerible Quartz is a supplier of quartz crucible for monocrystalline growth and polycrstalline casting. The square quartz ceramic crucible is used for polycrystalline casting,with high quality fused quartz as raw material, it has the excellent characteristics of high purity, crack free,accurate dimension,good thermal stability,strong corrosion resistance,high compressive and flexural strength and a long lifetime. The quartz ceramic crucible serves as a container for loading polysilicon material in the process of polycrystalline casting under the high temperature of 1600°C. Because of its rigorous working condition and high technical performance requirements, it is a key irreplaceable consumable material in the process of polycrystalline casting. Standard specification of our company: SpecificationType（Square）Dimension(mm)Type（square）Dimension(mm)11001050*1050*550900878*878*480900878*878*420720720*720*420585585*585*420440440*440*350240240*240*350220220*220*95Type（Round）Dimension(mm)Type（Round）Dimension(mm)610Φ610*420100Φ100*300Physical and Chemical Properties ItemsValues Max Operation Temperature（°C）1600 Volume Density（g/cm3）≥1.97 Apparent Porosity(%)≤12.5 Room Temperature Compressive Strength (MPa)≥57 Room Temperature Flexural Strength (MPa)≥22 Thermal Conductivity (W/m·k) (RT 1000°C)0.8 Thermal Expansion Coefficient(°C-1)(RT 1000°C)≤0.9*10-6 Crystallinity(vol%)≤1Note: The above chemical component values are the typical data,but not the technical properties of products. Because of its rigorous working condition and high technical performance requirements,it is irreplaceable key consumable material in the process of multi-crystalline silicon ingot growth.