ASTM-A531 › Standard Practice for Ultrasonic Examination of Turbine-Generator Steel Retaining Rings
Show Complete Document History
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 This practice covers the procedures to be followed when performing ultrasonic shear and longitudinal wave tests on turbine-generator retaining rings 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 Although this practice describes methods of ultrasonically testing retaining rings by either the contact or immersion method, it shall not restrict the use of improved inspection methods as they are developed. It is recognized that techniques for examination and evaluation may be chosen in order to enhance or improve the results or to accommodate variations in procedures, equipment, or capabilities. Considering these characteristics, forgings may be inspected by a combination of both the contact and the immersion methods, as mutually agreed upon between the manufacturer and the purchaser.
1.3 This practice and the applicable material specifications are expressed in both inch-pound units and SI units. However, unless the order specifies the applicable "M" specification designation SI units, the material shall be furnished to inch-pound units.
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 and health practices and determine the applicability of regulatory limitations prior to use.
Keywords
Generator materials-turbine; Retaining rings; Shear testing; Ultrasonic testing; ultrasonic examination of turbine-generator steel retaining wings,; practice
To find similar documents by ASTM Volume:
01.05 (Steel--Bars, Forgings, Bearing, Chain, Tool)
To find similar documents by classification:
21.060.60 (Rings, bushes, sleeves, collars)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-A0531_A0531M-18R23
Revision Level
2018 R23 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
April 17, 2023
Document Type
Practice
Page Count
6 pages
Committee Number
A01.06