... ANSI B16.5 FlangeClass:- 150, 300, 400, 600, 900, 1500, 2500Size:- 1/2" -24"Types: - Welding Neck (WN), Slip-on (SO), Blind ... F53, F55- Precipitation Hardening Steel 15-5PH, 17-4PH, 17-7PH, 18-8MoPH- Stainless Steel S30403, S30408, S30409, ... , GH3030, GH2132, GH1140Our standard Flanges:- ANSI B16.5, B16.47- ASME B16.5, B16.47- JIS B2220- BS10, BS3293, BS4504 ... : www.chinachaowei.com ANSI B16.5 Flange