1.1 This specification covers forged carbon steel piping components intended primarily for service in pressure pip-ing systems from −20 to +650 °F [−30 to +345 °C] where inherentnotch toughness is desired, butwhere notch tough-ness testing is not required. Included are forged or ring-rolled flanges, forged fittings, and valves made to specified dimensions, orto dimensional standards such as the ASME and API specifications referenced in Section 2.
1.2 This specification is limited to forgings with maxi-mum finished section thicknesses no larger than 2 in.[51 mm].
