... steel) Available:EN 10222-5(DIN17440) 1.4301, 1.4306(1.4307), 1.4401, 1.4404 and 1.4541, 1.4571etc.ASTM A182 F304, ASTM A182 F304L ... /Welding Neck (SCH 5S-SCH XXS) /Socket weld/ Threaded/ Lap Joint Flange2) EN 1092-1 Flanges TYPE 01, 02, 05 and 11 ... , SW), JIS 30K Weld Neck Flange5) BS 10 Table D/E/F/H Flange, BS 4504 Flanges, SABS 1123 Flanges6) AS2129 ...