A lot of aluminum (A2219-T852) flanges with a knife-edge seal have been used at the SPring-8 storage ring. We investigated an Electron Beam Modified (EBM) knife-edge seal for the flange to confirm seal compatibility with the original A2219-T852 flange. We already confirmed that mechanical properties of EBM are equal to those of the original flange.
In comparison with the original flange, we found that an ability of anti-scratch is almost equal, but corrosion resistance is inferior to that of the original flange.
