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General Ruby and Sapphire - Optics, Jewel Bearings, Electronic Parts and Wear Parts

Home | Black Glass 3.17

Black Glass 3.17

Black Glass 3.17

Material: high lead crystal
NOT ROHS compliant

Physical properties density 3.21 g/cm3
  color black, not see through
  composition lead glass
    other ingredients not communicated
  max working temperature 297 °C
     
Thermal properties strain point 437°C
  softening point 495 °C
     
Mechanical properties hardness 530  kg/cm2 
  young’s modulus 6*105 kg/cm2
  compressive strenght 7775 kg/cm2 
  tensile strength 570 kg/cm2