Standard Active Last Updated: Nov 16, 2023 Track Document
ASTM A472/A472M-23

Standard Specification for Heat Stability of Steam Turbine Shafts and Rotor Forgings

Standard Specification for Heat Stability of Steam Turbine Shafts and Rotor Forgings A0472_A0472M-23 ASTM|A0472_A0472M-23|en-US Standard Specification for Heat Stability of Steam Turbine Shafts and Rotor Forgings Standard new BOS Vol. 01.05 Committee A01
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Abstract

This measurement method covers the procedures for the standard practice of determining the heat stability of steam turbine and rotor forgings to ensure stability at operating temperature. Surface and test band preparation, and heating and cooling procedures prior to stability measurements are detailed. Interpretation of the results of cold and hot measurements is also described.

Scope

1.1 This specification covers the determination of heat stability of steam turbine shafts and rotor forgings to ensure stability at operating temperature. This specification is not ordinarily applicable to generator rotor forgings.

1.2 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the specification, the SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

1.3 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 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.

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Details
Book of Standards Volume: 01.05
Developed by Subcommittee: A01.06
Pages: 3
DOI: 10.1520/A0472_A0472M-23
ICS Code: 77.140.85