ASME SECTION II A-2 SA-727-SA-727M-2008 标准规范下载.pdf

2008a SECTION II, PART A SA-727/SA-727M SPECIFICATION FOR CARBON STEEL FORGINGS FOR A08 PIPING COMPONENTS WITH INHERENT NOTCH TOUGHNESS SA-727/SA-727M [Identical with ASTM Specification A 727/A 727M-02(R07).] 1. Scope 2. Referenced Documents 2.1 In addition to those reference documents listed in 1.1 This specification covers forged carbon steel piping components intended primarily for service in pressure pip- Specification A 961/A 961M, the following list of stan- ing systems from −20 to +650 °F [−30 to +345 °C] where dards apply to this specification. inherent notch toughness is desired, but where notch tough- 2.2 ASTM Standards: ness testing is not required. Included are forged or ring- A 350/A 350M Specification for Carbon and Low-Alloy rolled flanges, forged fittings, and valves made to specified Steel Forgings, Requiring Notch Toughness Testing for dimensions, or to dimensional standards such as the ASME Piping Components and API specifications referenced in Section 2. A 370 Test Methods and Definitions for Mechanical Test- ing of Steel Products 1.2 This specification is limited to forgings with maxi- A 788/A 788M Specification for Steel Forgings, General mum finished section thicknesses no larger than 2 in. Requirements [51 mm].