ASME SECTION II A-2 SA-781-SA-781M-2008 标准规范下载.pdf

2008a SECTION II, PART A SA-781/SA-781M SPECIFICATION FOR CASTINGS, STEEL AND ALLOY, COMMON REQUIREMENTS, FOR GENERAL INDUSTRIAL USE SA-781/SA-781M (Identical with ASTM Specification A 781/A 781M-06.) A08 1. Scope 1.2 This specification also covers a group of supple- 1.1 This specification covers a group of requirements mentary requirements that may be applied to the above that are mandatory requirements of the following steel specifications as indicated therein. These are provided for casting specifications issued by ASTM. If the product spec- use when additional testing or inspection is desired and ification specifies different requirements, the product speci- apply only when specified individually by the purchaser fication shall prevail. in the order. ASTM 1.3 The requirements of the individual material speci- Designation Title of Specification fication, and this general specification shall prevail in the sequence named. A 27/A 27M Steel Castings, Carbon, for General Appli- cation 1.4 The values stated in either inch-pound units or SI A 128/A 128M Steel Castings, Austenitic Manganese units are to be regarded separately as stand