Standard: ANSI B16.5 Class:150, 300, 600, 900, 1500, 2500 Size: 1/2" - 24" ... Nuclear, Automotive, Military, and so on..ANSI B16.5 FlangeClass:- 150, 300, 400, 600, 900, 1500, 2500Size:- 1/2" ... alloy GH600, GH3128, GH3030, GH2132, GH1140Our standard Flanges:- ANSI B16.5, B16.47- ASME B16.5, B16.47 ... 2276-2278, 2281-2284, 6083, 6084, 6089-6093- EN 1092, 1092-1- API605, 6A ,6B MSS SP44 AWWA C207Welcome to ...