Alumina Boats Catalog No. AC0928 Material Al2O3 Purity 99.8% Density 3.9 g/cm3 Alumina boats are available in various forms, purities, sizes, and prices. Alumina Boat Description Alumina boat is a ceramic product with high thermal conductivity, compressive strength, and thermal shock resistance. It also has a low thermal expansion, making it a suitable material for furnace use in boat, tube, and thermocouple sheath form. Alumina has high hardness and good wear resistance, making it a suitable material for ball valves, piston pumps, and deep drawing tools. In addition, it can be easily combined with metals and other ceramic materials using brazing techniques and metallizing. Alumina boat can be used under high temperature and do not contaminate most molten metals. Alumina Boat Specification Composition AL97 AL98 AL2O3 content 97% 99.80% Color White Ivory Tensile 30 Kpsi 32 Kpsi Flexural 55 Kpsi 60 Kpsi Compressive 300 Kpsi 330 Kpsi Density 3.70 g/cc 3.92 g/cc Hardness 13.8 HV, GPa 18 HV, GPa Thermal Conductivity 25 W/(m K) 32 W/(m K) C.O.T.E. 7.7 In / In°C (x107) 7.8 In / In°C (x107) Working temperature 1500 °C 1750 °C Dielectric Constant 9.5 9.8 Volume Resistivity >1014 Ohm-cm >1015 Ohm-cm Dielectric Strength 16 KV/mm 20 KV/mm Alumina Boat Applications Alumina Al2O3 boats are used in the following applications: • Used for making parts for CVD, ion implants, photolithography, and semiconductor parts. • In traditional industries, alumina ceramics are ideal for products such as injector tubes, gas nozzles and insulators. • Used as a material for industrial furnaces due to its ability to maintain its hardness at high temperatures. • Used as the protector for high-temperature thermal couples. • Used as a material for the chemical industry due to its high corrosion resistance. Alumina Boat Packaging Our Alumina boats are carefully handled to prevent damage during storage and transportation and to preserve the quality of our products in their original

Alumina Crucible Catalog No. AC0925 Material Al2O3 Purity 99%, 99.8% Density 3.8~3.9 g/cm3 Alumina crucibles are available in various forms, purities, sizes, and prices. Alumina Crucible Description Alumina crucible is a ceramic product with high thermal conductivity, compressive strength, and thermal shock resistance. It also has a low thermal expansion, making it a suitable material for furnace use in the crucible, tube, and thermocouple sheath form. Alumina is high hardness and good wear resistance, making it a suitable material for ball valves, piston pumps, and deep drawing tools. In addition, it can be easily combined with metals and other ceramic materials using brazing techniques and metalizing. Alumina crucibles can be used under high temperatures and do not contaminate most molten metals. Alumina Crucible Specification Composition AL97 AL98 AL2O3 content 97% 99.80% Color White Ivory Tensile 30 Kpsi 32 Kpsi Flexural 55 Kpsi 60 Kpsi Compressive 300 Kpsi 330 Kpsi Density 3.70 g/cc 3.92 g/cc Hardness 13.8 HV, GPa 18 HV, GPa Thermal Conductivity 25 W/(m K) 32 W/(m K) C.O.T.E. 7.7 In / In°C (x107) 7.8 In / In°C (x107) Working temperature 1500 °C 1750 °C Dielectric Constant 9.5 9.8 Volume Resistivity >1014 Ohm-cm >1015 Ohm-cm Dielectric Strength 16 KV/mm 20 KV/mm Alumina Crucible Applications Alumina Al2O3 crucibles are used in the following applications: • Used for making parts for CVD, ion implants, photolithography, and semiconductor parts. • In traditional industries, alumina ceramics are ideal for products such as injector tubes, gas nozzles and insulators. • Used as a material for industrial furnaces due to its ability to maintain its hardness at high temperatures. • Used as the protector for high-temperature thermal couples. • Used as a material for the chemical industry due to its high corrosion resistance. Alumina Crucible Packaging Our Alumina crucibles are carefully handled to prevent damage during storage and transportation and to preserve the quality of our products in their original condition.