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 manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this speci? Promoting, selling, recruiting, coursework and thesis posting is forbidden. Students Click Here Join Us! It’s easy to join and it’s free. When testing plates less than 3? 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. The x578 of the reference block shall be no better to the unaided levwl than the plate surface to be examined. If the drop in back re? A superscript epsilon e indicates an editorial change since the last revision or reapproval.
The material shall be held for metallurgical review by the purchaser and manufacturer. Make and model of instrument, test frequency, surface condition, transducer type and frequencyand couplant. Digital Transformation may lwvel defined in a number of different ways by analysts or enterprise software vendors. A number in parentheses indicates the year of last reapproval.
Use the transducers at their rated frequency. Minor sensitivity adjustments may be made to accommodate for surface roughness.
ASTM A clarification of Level B
Repeat the operation to establish the boundary. Download Now Defense manufacturing is all about project manufacturing and project accounting.
If the back re? Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. An equivalent standard is one which covers the quali? Acceptance Standard—Level A 7. The holes may be drilled in the plate to be examined if they a5778 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, lwvel thermal treatment as the plate to be examined.
Maintain this instrument ,evel during evaluation of the discontinuity condition.
Download Now White Paper: The Eng-Tips staff will check this out and take appropriate lvel. Mark the plate at a point equivalent to the center of the transducer.
Move the transducer away from the center of the discontinuity until the height of the back re? Acceptance Level B shall apply unless otherwise agreed to by purchaser and manufacturer. When details of these requirements are not covered herein, they are subject to agreement between the manufacturer and the purchaser.
The ratios are plotted on the graph at the position corresponding to the larger signal.
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When this condition is observed it shall be investigated additionally by use of multiple back re? 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. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. A curve is then plotted showing the deviations from the above established 2: This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?