Grade:J55,N80, L80-1,C90,T95,P110 Standard: API SPEC 5CT,API SPEC 5B Size Designation:1.900"4 1/2" Weight Designation:T&C non-upset, T&C external upset Outside diameter: 48.26114.3 mm Wall thickness: 3.18-16mm Length:R1(6.107.32m),R2(8.539.75m),R3(11.5812.8m)

Metalized sapphire windows are created by applying thin layers of chrome, nickel and gold around the edge of a sapphire window. This metalized edge creates a surface that can be soldered or bonded directly into your opto-mechanical assembly allowing you to create a hermetic seal. Hermetically sealed optics is used in a variety of applications ranging from infrared imaging systems to medical devices. Technical capability Material: optical sapphire (Al2O3) Diameter tolerance: +0, -0.1mm Thickness tolerance: +/-0.05mm Clear aperture: 90% Surface quality: 80-50 scratches and digs Surface accuracy: 2 lambdas per 25.4mm @ 632.8nm Parallelism: < 3 minutes Coating: AR coating, T > 98% @ 1260-1600nm Metalizing: Chrome, Nickel, and Gold; sputtering method or screen printing method