Standard: ANSI B16.5 Class:150, 300, 600, 900, 1500, 2500 Size: ... , Energy, Nuclear, Automotive, Military, and so on..ANSI B16.5 FlangeClass:- 150, 300, 400, 600, 900, 1500, 2500Size:- ... Material used: - Alloy 20- Nickel 200, 201- Monel 400. K-500- Inconel 600, 601, 625, 718, 725, X-750 ... GH3030, GH2132, GH1140Our standard Flanges:- ANSI B16.5, B16.47- ASME B16.5, B16.47- JIS B2220- BS10, BS3293, BS4504 ...