Flat Standard: EN1092-1 Grades: AISI 304, EN 1.4301 AISI 304L, EN 1.4307 AISI 316, EN 1.4401 (only on request) AISI 316, EN 1.4404 (only on request) Sizes: Flat flanges DN ISO pipe outside diameter [mm] 15 21,3 20 26,9 25 33,7 32 42,4 40 48,3 50 60,3 65 76,1 80 88,9 100 104 lub 114,3 125 139,7 150 168,3 200 219,1 250 273 350 355,6 Other sizes made to order! The grade you are interested in is missing here? Write to us! Contact Category: Flanges