ASME SECTION II A SA-53-SA-53M-2007 标准规范下载.pdf

2007 SECTION II, PART A SA-53/SA-53M SPECIFICATION FOR PIPE, STEEL, BLACK AND HOT- DIPPED, ZINC-COATED, WELDED AND SEAMLESS SA-53/SA-53M (Identical with ASTM Specification A 53/A 53M-01 except for the insertion of test practices in 11.1.1, and editorial correction to Table X4.1.) 1. Scope 1.3.3 Type E is furnished either nonexpanded or cold 1.1 This specification covers seamless and welded expanded at the option of the manufacturer. 1 black and hot-dipped galvanized steel pipe in NPS ⁄ 8 to 1.4 The values stated in either SI units or inch-pound NPS 26 [DN 6 to DN 650] (Note 1), inclusive, with nominal units are to be regarded separately as standard. The values wall thickness (Note 2) as given in Table X2.2 and Table stated in each system may not be exact equivalents; there- X2.3. It shall be permissible to furnish pipe having other fore, each system shall be used independently of the other. dimensions (Note 2) provided such pipe complies with all Combining values from the two systems may result in non- other requirements of this specification. conformance with the standard. NOTE 1 — The dimensionless designators NPS (nominal pipe size) [DN 1.5 The following precautiona