This standard is issued under the fixed designation A /A M; the number 1 This practice is under the jurisdiction of ASTM Committee A01 on Steel. ASTM AAM_冶金/矿山/地质_工程科技_专业资料。ASTM A AM 碳钢、低合金钢和马氏体不锈钢铸件超声波检验操作. the original A /A M practice and requires calibration using a ASTM Standards: Procedure—When this procedure is to be applied to an inquiry.
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Additional supplemental blocks for testing thickness greater than 10 in. BoxArlingate Ln. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
This test method deals with the procedures for the standard practice of performing pulse-echo ultrasonic examination of heat-treated carbon, low-alloy, and martensitic stainless steel castings by the longitudinal-beam technique. ICS Number Code This standard has been approved for use by agencies of the Department of Defense.
A question on ASTM A
Permission rights to photocopy the standard may also be secured from the ASTM website www. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
If the reason for loss of back re? The area of the location, for the purpose of this evaluation, shall be considered the area that is con? Adjust the gain of the instrument until the back re? Procedure B requires calibration using a back wall re?
NOTE 4—Counter bore shall be 1?
It also provides supplementary requirements for angle beam testing. When section thicknesses over 15 in. A number in parentheses indicates the year of last reapproval. Approved May 1, The stenciled grid number shall asmt in the upper right hand corner of the grid. Link to Active This link will always route to the current A6099 version of the standard.
All other types of rejectable indications shall be completely removed. Users of this standard are expressly advised w609 determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Increase the inspection sensitivity by a factor of three times 10 dB gain with the calibrated attenuator. Procedure B requires calibration using a back wall reflection from a series of solid calibration blocks.
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The supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract. Rejectable conditions are as follows and when any of the conditions listed below are found, the indications shall be removed and repair welded to the applicable process speci?
Machined surfaces shall be acceptance inspected as soon as possible after machining. B Asstm indication that equals or exceeds the 0. Z609 shall be determined in accordance with Practice E or equivalent electronic means.
If you feel asstm 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. Still other instruments do not have calibrated gains or attenuators. Clustered indications shall not exceed the limits of the quality level designated by the customer purchase order in Table 4. The same search unit used for calibration shall be used to inspect the casting.
The point of marking shall be the center of the search unit. If a procedure is not speci? The same couplant shall be used for calibrations and examinations.
ASTM A609/A609M – 12(2018)
The boundary limits of the indication shall be determined by marking a sufficient number of marks on the casting surfaces where the ultrasonic signal equals one half the reference amplitude, 0. Draw a curve through these marks on the screen or on suitable graph paper.
Surfaces that do not meet the requirements of Draw a rectangle or other regular shape through the indication in order to form a polygon from which the area may be easily computed.