Titanium Disks: Dia.: 100-1500mm Specification: ASTM B-348, ASME SB348, ASTM F136, AMS 4928Q, ASTM F67 surface:machine finish Titanium DisksDesignation: Gr.1, Gr.2, Gr.3, Gr.4, Gr.5, Gr.7, Ti-6Al-4V, etc. Dia.: 100-1500mmSpecification: ASTM B-348, ASME SB348, ASTM F136, AMS 4928Q, ASTM F67