1.1 This specification 2 covers forged low alloy and stainless steel piping components for use in pressure systems. Included are flanges, fittings, valves, and similar parts to specified dimensions or to dimensional standards, such as the ASME specifications that are referenced in Section 2.
1.2 For bars and products machined directly from bar or hollow bar (other than those directly addressed by this speci-fication; see 6.4), refer to Specifications A479/A479M, A739,or A511/A511M for the similar grades available in those specifications.
