ASTM B594-02
(Practice)Standard Practice for Ultrasonic Inspection of Aluminum-Alloy Wrought Products for Aerospace Applications
Standard Practice for Ultrasonic Inspection of Aluminum-Alloy Wrought Products for Aerospace Applications
SCOPE
1.1 This practice covers the requirements for pulse-echo ultrasonic inspection and includes criteria used to define applicable quality levels of aluminum-alloy wrought products for aerospace applications when performance of the ultrasonic test by the producer is specified, or when ultrasonic inspection is performed by the purchaser upon receipt.
1.2 This practice is not applicable if plastic deformation is introduced into the material after delivery.
1.3 The ultrasonic test described in this practice is employed to detect internal discontinuities oriented in a direction parallel to, or nearly parallel to, the surface of the product. The test is performed either by the immersion method or the contact method using pulsed longitudinal waves which are transmitted and received by a search unit containing either a single crystal or a combination of electrically interconnected multiple crystals. Ultrasonic tests employing either the through-transmission or the angle-beam techniques are not included.
Note 1—Ultrasonic tests employing angle-beam techniques require special reference blocks, search units, and scanning procedures and are subject to negotiation between the purchaser and the seller when such tests are required by the contract or purchase order.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units which are provided for information only and are not considered 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: B 594 – 02
Standard Practice for
Ultrasonic Inspection of Aluminum-Alloy Wrought Products
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for Aerospace Applications
This standard is issued under the fixed designation B 594; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope * 2. Referenced Documents
1.1 This practice covers the requirements for pulse-echo 2.1 The following documents of the issue in effect on date
ultrasonic inspection and includes criteria used to define of material purchase form a part of this practice to the extent
applicable quality levels of aluminum-alloy wrought products referenced herein:
for aerospace applications when performance of the ultrasonic 2.2 ASTM Standards:
test by the producer is specified, or when ultrasonic inspection B 881 Terminology Relating to Aluminum- and
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is performed by the purchaser upon receipt. Magnesium-Alloy Products
1.2 This practice is not applicable if plastic deformation is E 114 Practice for Ultrasonic Pulse-Echo Straight-Beam
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introduced into the material after delivery. Examination by the Contact Method
1.3 Theultrasonictestdescribedinthispracticeisemployed E 127 Practice for Fabricating and Checking Aluminum
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to detect internal discontinuities oriented in a direction parallel Alloy Ultrasonic Standard Reference Blocks
to, or nearly parallel to, the surface of the product. The test is E 214 Practice for Immersed Ultrasonic Examination by the
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performed either by the immersion method or the contact Reflection Method Using Pulsed Longitudinal Waves
method using pulsed longitudinal waves which are transmitted E 317 Practice for Evaluating Performance Characteristics
and received by a search unit containing either a single crystal of Ultrasonic Pulse-Echo Testing Systems Without the Use
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or a combination of electrically interconnected multiple crys- of Electronic Measurement Instruments
tals.Ultrasonictestsemployingeitherthethrough-transmission 2.3 American Society for Nondestructive Testing Standard:
or the angle-beam techniques are not included. ASNT Recommended Practice for Nondestructive Testing
Personnel Qualification and Certification—Ultrasonic
NOTE 1—Ultrasonic tests employing angle-beam techniques require
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Testing Method, SNT-TC-1A
special reference blocks, search units, and scanning procedures and are
2.4 National Aerospace Standard:
subjecttonegotiationbetweenthepurchaserandthesellerwhensuchtests
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are required by the contract or purchase order. NAS-410 Certification of Inspection Personnel
1.4 The values stated in inch-pound units are to be regarded
3. Terminology
asthestandard.Thevaluesgiveninparenthesesaremathemati-
3.1 Definitions—Refer toTerminology B 881 for definitions
cal conversions to SI units which are provided for information
of product terms used in this practice.
only and are not considered standard.
1.5 This standard does not purport to address all of the
4. Summary of Practice
safety concerns, if any, associated with its use. It is the
4.1 The product is inspected ultrasonically by scanning
responsibility of the user of this standard to establish appro-
specified entry surfaces with a beam of pulsed longitudinal
priate safety and health practices and determine the applica-
waves oriented in a direction perpendicular to the entry
bility of regulatory limitations prior to use.
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Annual Book of ASTM Standards, Vol 02.02.
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This practice is under the jurisdiction of ASTM Committee B07 on Light Annual Book of ASTM Standards, Vol 03.03.
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Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on Available fromAmerican Society for Nondestructive Testing, P.O. Box 28518,
Aluminum Alloy Wrought Products. 1711 Arlingate Ln., Columbus, OH 43228-0518.
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Current edition approved April 10, 2002. Published June 2002. Originally Available from AIA—Aerospace Industries Association, 1250 Eye Street,
published as B 594 – 74. Last previous edition B 594 – 97. N.W., Washington, DC, 20005-3922.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B 594
surface.Theultrasoundistransmittedintotheproducteitherby on part machine drawings. The drawings shall also indicate
the direct contact or the immersion method. During the scan, non-critical areas on the material and areas that will be
indications representing discontinuities are displayed on an removed by machining.
A-scan screen of
...
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