ASTM E – Download as PDF File .pdf), Text File .txt) or read online. This standard is issued under the fixed designation E ; the number immediately 1 This practice is under the jurisdiction of ASTM Committee E07 on Nonde-. ASTM E – Designation: E – 09 Standard Practice for Ultrasonic Testing of Metal Pipe a.
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ASTM E213 – 14E1
If it is determined that a lower refraction angle would be bene? Any of the apparatus types listed in Note 1 4.
For very large-diameter material where this requirement is found to be impractical search units of other focal lengths or unfocused units may be used.
These procedures have been successful with smaller sizes. This procedure becomes less critical for material of larger diameters d213 stiffness. The instrument shall be capable of this pulse repetition rate without false indications due to spurious re?
NOTE 9—If a requirement exists for both longitudinal and transverse notches the following three options are available: Although not mandatory, this practice enables all notches to asrm placed far enough from the ends to insure good support of the material end nearest the search unit s during set-up, and the inner surface notches to be near ends to facilitate insertion of the fabrication and astj Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Originally approved in Specific techniques of the ultrasonic method to which this practice applies include pulse-reflection techniques, both contact and non-contact for example, as described in Guide Eand angle beam immersion techniques. Alternatively, the search unit may be angulated in a plane perpendicular to the tube axis to produce the incidence angle. NOTE 7—Distance-Amplitude Correction— A method of compensating for the reduction in ultrasonic signal amplitude as a function of material sound-path distance may be employed.
If, upon ultrasonic reexamination of the reworked pipe or tube, no rejectable indications are detected, the material should be considered as having passed the e231 examination. 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.
Make these checks prior to any examination run, prior to equipment shutdown after an examination run, and at least every hour during continuous equipment operation.
The procedure in Annex A2 may be used to determine the helical scan pitch. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. No acceptable standardization repeatability can be provided in that case. If such a signal does not exist, make more frequent equipment standardization checks. The SI equivalents are in parentheses and may be approximate.
A refraction angle of 45 degrees is typically used when examining pipe or tubes with a diameter-to-wall thickness ratio of no less than about 10 to 1.
An independent channel or channels of instrumentation shall be employed to individually monitor the responses from the longitudinal and, when required, transverse oriented search units.
Rotate the tube without translation that is, without motion along its longitudinal axis and observe on the instrument display screen ast motion of the notch signal away from any residual interface signal.
The use of smaller notches by the examination agency is permissible, provided that concurrence is obtained from the contracting agency.
NOTE 6—The amplitude of indications obtained from reference notches may not be linearly proportional to notch depth. Historical Version s – view previous versions of standard.
e21 It is recognized that in normal machining practice, a radius will be generated. For ease of fabrication, the inner surface notch should be nearer the end of the pipe or tube. Details of the procedures used to establish and satm the distance-amplitude correction DAC curve shall be established by the using party or parties. The methods used for cleaning and preparing the surfaces for ultrasonic examination shall not be detrimental to the base metal or the surface?
The fractional percentage change in notch A2. Some differences in this procedure are required, as described below, depending upon whether the contact or immersion technique is employed. Coverage shall be based upon the maximum effective size of the search unit, the pulse density for each instrument channel and the helix.
The e13 selection and standardization procedure shall be used unless an alternative is approved by the contracting agency. The SI equivalents are in parentheses and may be approximate. Last previous edition approved in as E – Users of this standard are ast, advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are s213 their own responsibility. For thick-wall tubes a lower refraction angle may be required for examination of the entire thickness 5.
Note— Alternatively, set-up on the inner surface notch may be performed before set-up on the outer surface notch, as described in step h above.
ASTM E Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing
The procedure in Annex A2 may be used to determine the helical scan pitch. ASTM E Standard for Ultrasonic Testing of Metal Pipe Tube This practice covers a procedure for detecting discon- tinuities in metal pipe and steel tubing during a volumetric exami- nation using ultrasonic methods. These procedures have been successful with smaller sizes. This signal may be observed, but not gated, as a supplement to the required checking of the reference standard to provide increased assurance that the equipment is functioning properly.
ASTM E213 Standard for Ultrasonic Testing of Metal Pipe Tube
Interpretation of Results NOTE 3—In the contact method, some couplants result in better ultrasonic transmission when the tubing is precoated several hours before the examination.
For many materials a 45 degree refraction angle may asgm achieved with a beam incidence angle of about 18 to 19 degrees. Link to Active This link will always route to the current Active version of the standard. Rust inhibitors, softeners, and wetting agents may be added to the couplant.
The actual length of the worst case interception may be represented by: A method for achieving the required conditions is described below. In cases where the type of examination, material dimensions or other properties make the use of spherically or?