... & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276 Copper Alloys : Copper, Brass & GunmetalSize : 1/8" NB TO 48"NB.Class ... , DIN2637, DIN2638, DIN2673B.S : BS4504 , BS4504, BS1560, BS10 Stainless Steel Blind Flange,Slip on Flange,ANSI B16.5