Materials: A105/ST.37.2/Q235,304 316 forging Size range: 1/2"- 72" Type: plate,slip-on,welding neck,socket welding,blind Forging Flange includes SLIP-ON, SCREWED, SOCKET WELDING, WELDING NECK, LAP JOINT AND BLIND typeStandard: ANSI B16.5 class 150/400/400/600 EN1092-1 BS4504Size available: 1/2"--72" (DN15-DN1800) SS Flanges