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ASTM A531/A531M-24
Standard Practice for Ultrasonic Examination of Turbine-Generator Steel Retaining Rings
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STANDARD published on 1.5.2024
The information about the standard:
Designation standards: ASTM A531/A531M-24
Publication date standards: 1.5.2024
SKU: NS-1181665
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM A531/A531M-24 :
This test method covers the procedures for the standard practice of performing ultrasonic shear and longitudinal wave examinations on turbine-generator steel retaining rings. A pulsed reflection-type ultrasonic instrument shall be used for the tests. Scanning of steel specimens may be performed by either the contact (stationary) or immersion (rotating) methods, both of which may be executed in either the axial or circumferential directions. Tests shall be performed after specimens have gone through final processing and heat treatment for properties, and the circumferential and axial faces machined flat and parallel to one another. Also prior to testing, surface examinations shall be made for surface roughness and tears, loose scales, machining or grinding particles, paint, and other foreign and extraneous matter. Suitable couplant liquids, capable of conducting ultrasonic vibrations, shall be used to couple the transducer to test surfaces.
Keywords:
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,, ICS Number Code 21.060.60 (Rings, bushes, sleeves, collars)
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