ASTM A – pdf – Download as PDF File .pdf), Text File .txt) or read online. ASTM A/AM Standard Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications. ASTM A/AM: Standard Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications.
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Use the transducers at their rated frequency. Combining values from the two systems may result in non-conformance with the standard. Condition local rough surfaces by grinding. Download Now White Paper: Move the transducer away from the center of the discontinuity until the height of the back re?
ASTM A – acceptance standard clarification
Use a suitable couplant such as water, xstm oil, or glycerin. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
Are you an Engineering professional? NOTE 1—Indications occurring midway between the initial pulse and the?
About Advertise Contact Login. Maintain this instrument setting during evaluation of the discontinuity condition.
Three levels of acceptance standards are provided. Link to Active This link will always route to the current Active version of the standard. By joining you are opting in to receive e-mail. I ast, reviewing an pressure vessel spec and i should decide to choose one of this standards to notify. The supplement number shall be added for each supplementary requirement ordered. The test shall be performed either by direct contact, immersion, or liquid column coupling.
Referring to specific customer projects several of these cases are examined to outline the advantages of using Laser Shearography for automated defect detection. Link to Active This link will always route to the current Active version of the standard. If a5578 drop in back re? A has 3 different acceptance levels A, B, C.
An equivalent standard is one which covers the qualification and certification of ultrasonic nondestructive examination candidates and which is acceptable to the purchaser.
The values stated in asstm system are not exact equivalents; therefore, each system must xstm used independently of the other. A is not only applicable to alloy clad plate but can also be applied to “normal” plate.
Promoting, selling, recruiting, coursework and thesis posting is forbidden. Make and model of instrument, test frequency, surface condition, transducer type and frequencyand couplant. Where parallel path scanning is performed and recordable conditions as in 6.
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This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this speci? The method will detect internal discontinuities parallel to the rolled surfaces. At each increment the ratio of the two signals is determined.
We use technical and analytics cookies to ensure that we will give you the best experience of our website – More Info. The manufacturer may reserve the right to discuss rejectable ultrasonically examined material with the purchaser, the object being the possible repair of the ultrasonically indicated defect before rejection of the plate. The method will detect internal discontinuities parallel to the rolled surfaces.
The holes may be drilled in the plate to be examined if they can be located without interfering with the use of the aastm, in a prolongation astk the plate to be examined, or in a reference block of the same nominal composition, and thermal treatment as the plate to be examined. Available in both two-axis and three-axis instrument configurations and adaptable to cover a wide range of degree nozzle sizes, from 3″ upwards, on ferritic and austenitic materials.
As a result of the test by this method, the surface of plates may be expected to have a residue of oil or rust or both. The inspection shall be performed in an area free of operations that interfere with proper performance of the test. When details of these requirements are not covered herein, they are subject to agreement a758 the manufacturer and the purchaser.
Supplementary requirements are provided for examination of clad plate and for alternative procedures. The Navic is capable of weld scanning girth welds and long seam weldsautomated corrosion mapping, and tank scanning. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. This abstract is a brief summary of the referenced standard. 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.
NozzleScan is a versatile manual scanning solution developed for the inspection of nozzle welds in. Red Flag This Post Please let us know here why this post is inappropriate.