... material is 304 316 316L 2205 2507 etc . Stainless Steel Flange size: 1/2''-24'' wall thickness: sch 5- sch ... 160XXS standard: ISO, ANSI,JIS,DIN,GB ect.1,Product: Stainless Steel FlangeWelded Neck Flange,Slip on Flange,Plate Flange, Blind ... ,2520,S31803, 2205, etc.4,Size: 15-610mm, 1/2''--24''5,Pressure Ratings: CLASS 150-2500, PN6- ... or as per customer's request. welding neck stainless steel flange