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Description of ASTM-E2375 2016ASTM E2375-16Historical Standard: Standard Practice for Ultrasonic Testing of Wrought ProductsASTM E2375Scope 1.1 Purpose—This practice establishes the minimum requirements for ultrasonic examination of wrought products. Note 1: This standard was adopted to replace MIL-STD-2154, 30 Sept. 1982. This standard is intended to be used for the same applications as the document which it replaced. Users should carefully review its requirements when considering its use for new, or different applications, or both. 1.2 Application—This practice is applicable for examination of materials such as, wrought metals and wrought metal products having a thickness or cross section equal to 0.250 in. (6.35 mm) or greater. 1.2.1 Wrought Aluminum Alloy Products—Examination shall be in accordance with Practice B594. 1.3 Acceptance Class—When examination is performed in accordance with this practice, engineering drawings, specifications, or other applicable documents shall indicate the acceptance criteria. Five ultrasonic acceptance classes are defined in Table 1. One or more of these classes may be used to establish the acceptance criteria or additional or alternate criteria may be specified.
(A) Any discontinuity with a response greater than the response from a flat-bottom hole or equivalent notch
(see footnote B) at the estimated discontinuity depth and the discontinuity size given is not acceptable.
(B) See Fig. 3, Fig. 4, or
Fig. 5 for dimensions of notches and holes when these are required for angle beam examination of tube walls and near-surface regions of cylindrical parts
and other products.
(C) Multiple discontinuities with indications greater than the response from a reference flat-bottom hole or
equivalent notch at the estimated discontinuity depth of the size given (diameter) are not acceptable if the centers of any two of these discontinuities are less than one inch apart (not
applicable to Class C).
(D) Any discontinuity longer than the length given with indications equal to or greater than the response given
(flat-bottom hole or notch response) is not acceptable. Not applicable to Class C).
(E) Loss of back reflection by more than 50 %, when compared to non-defective material in the same or a similar
part, is not acceptable.
(F) For longitudinal examination of material over 6-in. (152.4-mm) thick in the short transverse direction, any
loss of back reflection equal to or greater than 12 dB over an area 2 by 2 in. (50.8 by 50.8 mm) is rejectable. (Noise level is not relevant to this back reflection evaluation.
(G) Noise which exceeds the alarm level setting (see 7.4.10.7), is not
acceptable, except for titanium. For titanium alloys, the alarm level may be set just above the noise level, but shall not exceed 70 % of the reference standard response.
(H) When examining titanium, Class AA and Class AAA, no rejection shall be made on the basis of “noise” level,
if within the limits specified in footnote G.
(I) Evaluation may be done by setting up on a 3/64 in. (1.19 mm) hole and adding 7
dB of gain. (Also see Note 5 under Table 5.)
1.4 Order of Precedence—Contractual requirements and authorized direction from the cognizant engineering organization may add to or modify the requirements of this practice. Otherwise, in the event of conflict between the text of this practice and the references cited herein, the text of this practice takes precedence. Nothing in this practice, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 1.5 Measurement Values—The values stated in inch-pounds are to be regarded as standard. The metric equivalents are in parentheses. 1.6 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 angle beam; contact method; immersion ultrasonic; longitudinal wave; nondestructive; straight beam; ultrasonic; ultrasonic examination; ultrasonic technique; ultrasound; wrought metal products; wrought metals; ICS Code ICS Number Code 71.040.99 (Other standards related to analytical chemistry) DOI: 10.1520/E2375-16 The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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