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2003: Established DongCheng STRON 
Machinery Parts Shop in Dongguan city        
2004: STRON Material (Hong Kong) 
Trading Co.  was registered  in Hong 
Kong. In the same year,  gained import 
& export license  from China  government. 
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  Products → BaF2

Optical Coating Materials
Optical Governance Tool
Optical Crystal
Coating Equipment Parts
Optorun coating equipment
INFICON Area

BaF2
 
 
OPTICAL  
  Transmission Range 0.13 to 10 microns
  Refractive Index 1.4626 at 2.6 microns
  Reflection Loss 6.9% at 2.6 µm (2 surfaces)
  Restrahlen Peak 47 microns
  dN/dT -15.2 x 10-6/oC
PHYSICAL  
  Density 4.89 g/cm3
  Melting Point 1280 °C
  Thermal Conductivity 11.72 W/(m K) at 13 °C
  Thermal Expansion 18.1 x 10-6/°C at -100 to +200 °C
  Hardness Knoop 82 kg/mm2 with 500g indenter
  Specific Heat Capacity 410 J/(kg K) at 27 °C
  Dielectric Constant 7.33 at 2MHz
  Young's Modulus (E) 53.07 GPa
  Shear Modulus (G) 25.4 GPa
  Bulk Modulus (K) 56.4 GPa
  Elastic Coefficients C11 = 89.2 MPa; C12 = 40.0 MPa;
C14=25.4 MPa
  Apparent Elastic Limit 26.89 MPa
  Poisson Ratio 0.343
CHEMICAL  
  Solubility 0.17g/100g water at 23°C
  Molecular Weight 175.36
  Class/Structure Cubic (111) cleavage
 
 
 
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Copyright © Dongguan Stron Optics Technology Co., Ltd.  TEL:0769-22607473  FAX:0769-22259370
ADD:No1801,1816 in Building 3 of GrapeManor.No9 of JinAo road Xincheng community Wanjiang district Dongguang city