Stainless Steel Welding Neck Flange Standard: ANSI B16.5,DIN,JIS,UNI,BS4504,EN1092-1 Material:SS 1.Product detailsStainless Steel Welding Neck FlangeSize:3 ... Forged FlangeSize 3/4"-30". Kinds Slip on flanges,welding neck flanges,blind flanges,plate flanges,socket welded flanges,threaded ... flanges,lap joint flanges etc.Pressure Rating Class150,300,600,900,1500,2500; PN6,PN10,PN16,PN25,PN50,PN100 ...