... API,CE size 1/2" to 24" ASME B16.526"to 80" ASME B16.47TypeWNF, SO, SWF, BL, OF,LF,PLFaceRF, ... PN40/ Class A, B, C, D, EstandardASME B16.5, ASME B16.47, ASME B16.36,DIN 86341-2000, DIN2505materialCarbon steel(ASTM A105 ... requirement of customer1.ANSI FLANGESStandard: ANSI B16.5;ANSI B16.47;MSS SP44;ANSI B16.36 ANSI B16.48Types: Welding Neck Flanges, Slip ... (100 /2)SIZE: 1/2" TO 48 Class 400 14" SO flange