Din flanges, Din Flanges are widely used in special circumstances with their main advantage being that they can be attached to the pipe without welding, Stainless Steel Din Flanges : ASTM A 182, A 240 Din Flanges Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel Din Flanges UNS S32750.