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K9 Optical Glass Circular Plates | Multiple Sizes in Stock & Customization Available | High Light Transmission Rate
The density is 2.51g/cm3, the Knoop hardness is HK 100 610kg/mm2, the Young's modulus is 82 x 103kN/mm2, and the Poisson's ratio is 0.21. These mechanical performance parameters indicate that K9 glass has good hardness and mechanical strength, making it suitable for optical instruments that need to withstand certain external forces.
In terms of thermal performance, the softening point of K9 glass is 719 ° C, annealing point is 657 ° C, strain point is 624 ° C, thermal conductivity is 1.1W/m. ° C, specific heat is 879J/kg. ° C, and thermal expansion coefficient is 7.1 × 10E-6/K. These parameters ensure the stability and reliability of K9 glass in temperature changing environments.
In terms of chemical properties, the hydrolysis resistance of K9 glass is level 2, acid resistance is level 1, and alkali resistance is level 2. These indicators demonstrate that K9 glass has good chemical stability and corrosion resistance, and is suitable for various harsh environments.
In summary, K9 optical glass is widely used in modern industry and high-tech fields due to its excellent optical, mechanical, thermal, and chemical properties, such as photography equipment, instrumentation, optical instruments, medical instruments, teaching instruments, special lighting fixtures, military products, and other high-end optical instruments and high-end crystal handicrafts.
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