美国材料协会标准 A252 - A 252M - 19.pdf

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. Designation: A252/A252M − 19 Standard Specification for Welded and Seamless Steel Pipe Piles1 This standard is issued under the fixed designation A252/A252M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval. 1. Scope* 2. Referenced Documents 1.1 This specification covers nominal (average) wall steel 2.1 ASTM Standards:2 pipe piles of cylindrical shape and applies to pipe piles in A370 Test Methods and Definitions for Mechanical Testing which the steel cylinder acts as a permanent load-carrying of Steel Products member, or as a shell to form cast-in-place concrete piles. Pipe A751 Test Methods, Practices, and Terminology for Chemi- piles are produced as both welded and seamless products. cal Analysis of Steel Products A941 Terminology Relating to Steel, Stainless Steel, Related 1.2 This specification is expressed in both inch-pound units Alloys, and Ferroalloys and SI units; ho