ASTM A – pdf – Download as PDF File .pdf), Text File .txt) or read online. ASTM A/AM Standard Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications. ASTM A/AM: Standard Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications.
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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. As a result of the test by this method, the surface of plates may be expected to have a residue of oil awtm rust or both. Active view current version of standard. Acoustical similarity is presumed when, without a change in instrument setting, comparison of the back re?
Click Here to join Eng-Tips and talk with other members! The method will detect internal discontinuities parallel to the rolled surfaces. This procedure covers the standard and acceptance standards for straight-beam, pulse-echo, ultrasonic examination of rolled carbon and alloy steel plates.
Link to Active This link will always route to the current Active version of the standard. When this condition is observed it shall be investigated additionally by use of multiple back re?
The method will detect internal discontinuities parallel a5788 the rolled surfaces. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Condition local rough surfaces by grinding.
The holes w578 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.
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The true boundaries where these conditions exist shall be established in either method by the following technique: Measure the lines from the center or one corner of the plate with an additional path within 2 in. Link to Active This link will always route to the current Active version of the standard.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but xstm not provided as part of the standard. Mark the plate at a point equivalent to the center of the transducer.
diffference between ASTMA and ASTM A – Boiler and Pressure Vessel engineering – Eng-Tips
At each increment the ratio of the two signals is determined. All discontinuities causing complete loss of reflection shall be recorded. Supplementary requirements are provided for examination of clad plate and for alternative procedures.
If the drop in back re? A astn, easily interpreted trace pattern should be produced during the examination. The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this speci?
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 a58 be examined, or in a a5778 block of the same nominal composition, and thermal treatment as the plate to be examined.
ASTM A – acceptance standard clarification
The amplitude linearity of the apparatus to be used shall be checked by positioning the transducer over the depth resolution notch in the IIW or similar block. A number in parentheses indicates the year of last reapproval. Students Click Here Join Us! Red Flag This Post Please let us know here why this post is inappropriate. NOTE 1—Indications occurring midway between the initial pulse and the? Minor sensitivity adjustments may be made to accommodate for surface roughness.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. The test shall be performed either by direct contact, immersion, or liquid column coupling.
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If the back re? Combining values from the s578 systems may result in non-conformance with the standard. The inspection shall be performed in an area free of operations that interfere with proper performance of the test. The Navic is a modular, motorized, steerable scanner designed to carry multiple attachments used.
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Active view current version of standard Translated Standard: It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
Current edition approved Sept. I am reviewing an pressure vessel spec and i should decide to choose one of this standards to notify. An equivalent standard is one which covers the quali? An equivalent standard is one which covers the qualification and certification of ultrasonic nondestructive examination candidates and which is acceptable to the purchaser.