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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Condition local rough surfaces by grinding. The holes may be drilled in the plate to be examined if they can be located without interfering with the use of the asgm, in a prolongation of the plate to be examined, or in a reference block of the same nominal composition, and thermal levell as the plate to be examined.

Repeat the operation to establish the boundary. Download Now Defense manufacturing is all about project manufacturing and project accounting.

ASTM A clarification of Level B

When testing plates less than 3? When details of these requirements are not covered herein, they are subject to agreement between the manufacturer and the purchaser. At each increment the ratio of the two signals is determined. 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.


This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? A clean, easily interpreted trace pattern should be produced during the examination. Are you an Engineering professional? The material shall be held for metallurgical review by the purchaser and manufacturer.

Click Here to join Eng-Tips and talk with other members! The true boundaries where these conditions exist shall be established in either method by the following technique: Minor sensitivity adjustments may be made to accommodate for surface roughness. Use the transducers at their rated frequency. Use a suitable couplant such as water, soluble oil, or glycerin. Can anyone tell me what is the difference between these three LEVEL of acceptance, please elaborate in simple language.

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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. Acceptance Standard—Level A 7.

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The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Lvel method will detect internal discontinuities parallel to the rolled surfaces.

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Maintain this instrument setting during evaluation of the discontinuity condition. The ratios are plotted on the graph at the position corresponding to the larger signal. Additionally, prior approval must be obtained if the weld repaired surface exceeds 1.

A number in parentheses indicates the year lefel last reapproval.

Acoustical similarity is presumed when, without a change in instrument setting, comparison of the back re? Make and model of instrument, test frequency, surface lwvel, transducer type and frequencyand couplant.

The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this speci? Supplementary requirements are provided for examination of clad plate and for alternative procedures.

Download Now White Paper: 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 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. It’s easy to join and it’s free. Combining values from the two systems may result in nonconformance with the speci? Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Within the text, the SI units are shown in brackets.