ASME SECTION II A-2 SA-985-SA-985M-2008 标准规范下载.pdf

2008a SECTION II, PART A SA-985/SA-985M SPECIFICATION FOR STEEL INVESTMENT CASTINGS GENERAL REQUIREMENTS, FOR PRESSURE- CONTAINING PARTS SA-985/SA-985M (Identical with ASTM Specification A 985/A 985M-04a.) A08 1. Scope this specification. Inch-pound units are applicable for mate- 1.1 This specification covers a group of common rial ordered to Specification A 985 and SI units for material requirements that are mandatory for steel castings produced ordered to Specification A 985M. by the investment casting process for pressure-containing 1.5 This standard does not purport to address all of parts under each of the following ASTM Specifications: the safety concerns, if any, associated with its use. It is ASTM the responsibility of the user of this standard to establish Title of Specification Designation appropriate safety and health practices and determine the Steel Castings, Carbon, Suitable for Fusion A 216/A 216M applicability of regulatory limitations prior to use. Welding for High-Temperature Service Steel Castings, Martensitic Stainless and Alloy, A 217/A 217M for Pressure-Containing Parts, Suitable for 2. Referenced Documents High-Temperature Service 2.1