Niko Steel Industries supplies Weld Neck Flange. Niko Steel Industries manufactures stainless steel, alloy steel, carbon steel, nickel alloy, other non ferrous metal and other engineering & industrial items in form of pipes & tubes, pipe fittings, sheet, plates, bars etc. Weld Neck Flange is mainly used on heat coupling of pipes when there is possibility of expansion of the section while bending stress on the coupling. The specifications of Weld Neck Flange are ANSI B 16.5 from 1/2" to 24" and classes150 to 2500. These flanges are manufactured in different shapes and sizes depending upon the purpose.