2022年2月16日 · astm a249-a249m-2018a chn 下载积分： 2000 内容提示： ASTMA249/A249M-2018a锅炉、过热器、换热器和冷凝器用焊接奥氏体钢管子的标准规范Standard Specification for Welded Austenitic Steel Boiler,Superheater, Heat-Exchanger, and Condenser Tubes

2014年3月14日 · 1.1 This specification 2 covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels listed in Table 1, with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.

1 This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.10 on Stainless and Alloy Steel Tubular Products.

2024年6月1日 · 本标准以固定名称 A249/A249M 发⾏；名称后⾯的数字表⽰⾸次采⽤的年份，或在修订的情况下表⽰最近修订的年份。 括号中的数字表⽰最近重新批准的年份。 对于 ASME 锅炉和压⼒容器规范的应⽤，请参阅相关规范如需参考 ASTM 标准，请访问 ASTM ⽹站 www.astm.org，或联系 ASTM 客⼾服务部⻔ [email protected]。 如需ASTM 标准年鉴卷信息，请参阅 ASTM ⽹站上该标准的文档摘要⻚⾯。 该法典第 II 节中 SA-249 规定。 1.3 本规范通常 …

ASTM A249 and ASTM A269 specifications are two ASTM standards for Austenitic stainless steel tubes, the difference between ASTM A249 and ASTM A269 is that ASTM A249 covers welded tubes while ASTM A269 covers not only welded tubes but also seamless tubes, they have differences in tolerances, tests, and applications, in practice, ASTM A249/ASTM ...

This specification covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels listed in Table 1, with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.

Note that Practices A262 requires the test to be performed on sensitized specimens in the low carbon and stabilized types and on specimens representative of the as-shipped condition of the other types.

This standard is issued under the fixed designation A 249/A 249M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

1.1 This specification covers nominal-wall-thickness welded tubes made from the austenitic steels listed in Table 1, with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.

2018年12月1日 · astm a249/a249m-18a(2023) March 1, 2023 Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes