This Malaysian Standard covers forged carbon steel piping components for ambient- and higher temperature service in pressure systems. included are flanges, fittings, valves, and similar parts ordered either to dimensions specified by the purchaser or to dimensional standards such as the MSS, ASME, and API. Forgings made to this specification are limited to a maximum weight of 10 000 lb [4540 kg]. Tubesheets and hollow cylindrical forgings for pressure vessel shells are not included within the scope of this application. Although this specification covers some piping components machined from rolled bar and seamless tubular products, it does not cover raw material produced in these product forms.
Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.
Specification A 266/A266M covers other steel forgings and Specifications A675/A675M and A696 cover other steel bar