Blind Flange ANSI B16.5/B16.47 Flange, DIN Standard Flange, ... EN10204 3.1 Certificate. Medium:W.O.G Stainless Steel Blind FlangeMaterials, Grades (stainless steel) include:1.4301 SS, 1.4306 ... , DIN 2635 PN40 Flange2. ANSI B16.5 150LB (300LB, 600LB) Blind/ Slip-on/SCH 10(SCH 40, SCH 80) WeldingNeck/ Plate ... Surface: FF, RF, LJ, TG, FM, and RTJ Stainless Steel Blind Flange