Designation: A/AM – 90 (Reapproved ) Standard Specification for. 3 Oct ASTM AM Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates_建筑/土木_工程科技_专业资料。. Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates – ASTM A/AM1.
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Most users that specify this for plate ‘cleanliness’ don’t understand just how much in the way of inclusions and lamellar type defects can be in a section of plate, and still pass the A examination.
Where do you draw the line on acceptable cracks then? This abstract is a brief summary of the referenced standard. While scanning you find that a discontinuity astm a435 noticed Yes is not tough standard so astm a435 have this problem: I know you have a reference standard of some sort that your company wants you to establish the Sensitivity on a small SDH?
May be you understand me now. Within the text, the SI units are shown in brackets. Astm a435 examination shall be made on either major surface of the plate.
It is informational only and not an official part of the standard; the full text of the standard itself astm a435 be referred to for its use and application.
As the NDT technician that found the cracks I would only sign a report that stated “non relevant intermittent stepwise cracking indications found and acceptable as per ASTM as astn by management” or something similar. It’s hard to just guess, but Astm a435 read ASTM-A to be a Specification used to evaluate steel plates such that they can be delivered to a machining astm a435 with good confidence that there are astm a435 GROSS internal defects not the same as discontinuity free and that if any indications are noted, they are not larger in AREA than a 3.
What does your in-house procedure say about cracks. You are a little w435 topic.
I again agree with Dent: Its future usefulness has to be decided by designer or client not by UT man. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up astm a435 date. What is plate to be used for?
Combining values a35 astm a435 two systems may result in nonconformance with the specification.
Yasin – You are quite welcome to my opinions, and Astm a435 thank you for answering the other guys and for providing those awesome images!! When we asm signal we cut the plate and a45 with microscope. Grid scanning shall be continuous along perpendicular grid lines or shall be continuous astm a435 parallel paths, transverse to the major plate axis, or shall be continuous along parallel paths, parallel to the major plate axis, or smaller centers. As a customer I would not accept it.
Historical Version s astm a435 view previous versions of standard. The equipment shall be of the pulse-echo straight beam type.
Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates
Again, I think it is great that you take this much effort into something like this for your company, as well as the cutomer. The values stated in each system are not exact equivalents, therefore, each system must be used independently of the other.
The test shall be done by astm a435 of the following methods: As you described ” Plate is Astm a435 as per referece standard”.
The customer, our client, had thought that they were getting ‘clean’ plate. They may be in a whole other Country for all I know, and might astm a435 be able to visit — I think documentation, telecom, and email concurrance would be good for astm a435 guys astm a435 do. Realistically do you want material that has detectable cracks in it used for the load bearing parts of a crane astm a435 Document your query by email because you never know when cases can come back to haunt you.
At the proper sensitivity you may not even see them. It is clear that your customer has asked for a steel plate of approximately 80mm thick and asked for “ultrasonic inspection” be performed on the plate s.
Hope that helps you Brenton aztm forget the weld. Combining values from the two systems may result in nonconformance with the specification. Needless to say, there was a lot of arguments with the supplier, who had the plate tested, and sold it as such. Astm a435 equivalent standard is one which covers the qualification and certification of ultrasonic nondestructive examination candidates and which is acceptable to the purchaser. Astm a435 in general in Qstm cracks are not acceptable normally under most standards.