This document provides specifications for composite slip-on flanges and welding neck flanges made of copper-nickel alloy for pipes with nominal diameters ranging from 1/2 inch to 24 inches. It includes dimensions for the inner and outer flanges, bolt hole details, theoretical weights, material grades that comply with various pressure standards, and contact information for the manufacturer. Dimensions and specifications are provided in table format for different pipe sizes, pressure classes, and material types.