ASTM A LEVEL B, Ali Asghari, 2/2/15 AM. Dear All. In lamination check by straight probe, some lamination and inclusion detected but they have a. All production processes are Level II automated which ensures ASTM A ( Level A – max mm;. Level B – max 60 mm; Level C – 20 mm). • BS Please make the clarification the Acceptance level between ASTM A Level II and Level B. Because i got the requirement from client that Ultrasonic for steel.

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The holes may be drilled in the plate to be examined if they can be located without interfering with the use of the plate, in a prolongation of the plate to be examined, or in a reference block of the same nominal composition, and thermal treatment as the plate to be examined.

Acceptance Standards—Level B 8. The true boundaries where these conditions exist shall be established in either method by the following technique: When details of these requirements are not covered herein, they are subject to agreement between the manufacturer and the purchaser.

By joining you are opting in to receive e-mail. The material shall be held for metallurgical review by the purchaser and manufacturer. The surface of the reference block shall be no better to the unaided eye than the plate surface to be examined.

When this condition is observed it shall be investigated additionally by use of multiple back re? Make and model of instrument, test frequency, surface condition, transducer type and frequencyand couplant.

Move the transducer away from the center of the discontinuity until the height of the back re? An equivalent standard is one which covers the quali?


Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Thickness, grain size or microstructure of the material and nature of the equipment or method may require a higher or lower test frequency. Close this window and log in. The ratios are plotted on the graph at the position corresponding to the larger signal.

SA, UT Acceptance criteria – Boiler and Pressure Vessel engineering – Eng-Tips

Levell the plate at a point equivalent to the center of the transducer. A number in parentheses indicates the year of last reapproval. At each increment the ratio of the two signals is determined. Acceptance Standard—Level C 9.

Promoting, selling, recruiting, coursework and thesis posting is forbidden. Combining values from the two systems may result in nonconformance with the speci? 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. It’s easy to join and it’s free. The supplement number shall be added for each supplementary requirement ordered. Are you an Engineering professional? Level C is the most stringent. If the drop in back re?

Measure the lines from the center or one corner of the plate with an additional path within 2 in. Thank you for helping keep Eng-Tips Forums free from inappropriate posts. A curve is then plotted showing the deviations from the above established 2: The method will detect internal discontinuities parallel to the rolled surfaces.

Acceptance Standard—Level A 7. Where parallel path scanning is performed and leveel conditions as in 6. A clean, easily interpreted trace pattern should be produced during the examination. Red Flag This Post Please let us know here why this post is inappropriate. Individual reprints single or multiple awtm of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.


The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. When testing plates less than 3? Repeat the operation to establish the boundary. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Originally published as A — 67 T. Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.

Use a suitable couplant such legel water, soluble oil, or glycerin. The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this speci? A superscript epsilon e indicates an editorial change since the last revision or reapproval.

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Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. The Eng-Tips staff will check this out and take appropriate action.

NOTE 1—Indications occurring midway between the initial pulse and the? Students Click Here Join Us!

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