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ASTM E531-76(2007)

Historical Reaffirmation

Standard Practice for Surveillance Testing of High-Temperature Nuclear Component Materials (Withdrawn 2022)

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1.1 This practice covers procedures for specimen testing to establish changes occurring in the mechanical properties due to irradiation and thermal effects of nuclear component metallic materials where these materials are used for high temperature applications above 370°C (700°F).


The requirements contained herein can be used as a basis for establishing conditions for safe operation of critical components. The requirements provide for general plant assessment and verification that materials meet design criteria. The test specimens and procedures presented in this practice are for guidance when establishing a surveillance program.

This practice for high-temperature materials surveillance programs is used when nuclear reactor component materials are monitored by specimen testing. Periodic testing is performed through the service life of the components to assess changes in selected material properties that are caused by neutron irradiation and thermal effects. The properties are those used as design criteria for the respective nuclear components. The extent of material property change caused by neutron irradiation depends on the composition and structure of the initial material, its conditioning in component fabrication, as well as the nature of the irradiation exposure. The need for surveillance arises from a concern of specific material behavior under all irradiation conditions including spectrum and rate effects on material properties.

SDO ASTM: ASTM International
Document Number E531
Publication Date June 1, 2007
Language en - English
Page Count 5
Revision Level 76(2007)
Supercedes
Committee E10.02
Publish Date Document Id Type View
May 1, 2024 E0531-24 Revision
Sept. 1, 2023 E0531-23 Revision
Jan. 1, 2013 E0531-13 Revision
June 1, 2007 E0531-76R07 Reaffirmation
March 26, 1976 E0531-76R01 Reaffirmation
March 26, 1976 E0531-76R96E01 Reaffirmation