ASME SA336 Large Forgings Flange for Pipe System Cover Overview of ASME SA336 Large Forgings Flange for Pipe System Cover ASME SA336 is a standard specification for alloy steel forgings used in pressure and high-temperature applications, such as flanges, fittings, valves, and other components in piping systems. Large forgings flanges, compliant with ASME SA336, are