ASTM A531/A531M - 18 - Standard Practice for Ultrasonic Examination of Turbine-Generator Steel Retaining Rings

ASTM A531/A531M - 18

Standard Practice for Ultrasonic Examination of Turbine-Generator Steel Retaining Rings

Status : Current   Published : May 2018

Format
PDF

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HARDCOPY



1.1 This practice covers ultrasonic examination of turbine-generator retaining rings produced in accordance with Specifications A288 and A289/A289M with an inside diameter to wall thickness ratio equal to or greater than 5:1 and with wall thicknesses from 1 to 4 in. [25 to 102 mm].

1.2 Forgings may be inspected by either the contact or the immersion methods, or combinations thereof, as agreed upon between the manufacturer and the purchaser.

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 practice is expressed in inch-pound and 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 SI units or inch-pound units are to be regarded separately as standard. Within the practice, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

1.5  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.

1.6  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.




Standard NumberASTM A531/A531M - 18
TitleStandard Practice for Ultrasonic Examination of Turbine-Generator Steel Retaining Rings
StatusCurrent
Publication Date01 May 2018
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Angle beam examination, back-reflection, contact method, generator, immersion method, longitudinal wave testing, nondestructive testing, reference-block, reference-notch, retaining rings, shear wave testing, steel forgings-alloy, turbine, ultrasonic apparatus, ultrasonic couplants, ultrasonic examination
ICS21.060.60
PublisherASTM
FormatA4
DeliveryYes
Pages6
File Size88 KB
Price£40.00


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