Home Resource Center Product Data and Related Literature Beryllium Vacuum - UHV Assemblies Vacuum - UHV Assemblies Resources Catalog Flange Mounted Window Assemblies Materion Electrofusion has been supplying the UHV community with flange-mounted beryllium window assemblies for more than 45 years. We offer a catalog of standard flange sizes, apertures and foil thicknesses and grades. UHV Beryllium Beam Pipes Materion Electrofusion, the leading supplier to linear accelerator and collider research centers since 1966, specializes in the design, fabrication, and testing of high performance beryllium beam pipe assemblies for applications demanding extreme vacuum integrity and repeated high temperature bakeouts. UHV Research Chambers Research laboratories around the world have come to rely extensively on Materion Electrofusion’s ability to braze or weld beryllium x-ray windows to simple or complex UHV chambers. These custombuilt chambers are used for demanding and unusual x-ray diffraction applications including crystal growth and analysis.