ASTM A pdf – Download as PDF File .pdf), Text File .txt) or read online. 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。. ASTM-A, ASTM-A, BS-EN and others). Reports. A test report documenting inspection and analysis results can be automatically produced at the.
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Within the text, the SI units are shown in brackets. While scanning you find that a discontinuity is noticed Yes is not tough standard so we have this problem: They may be in a whole other Country for all I know, and might not be able to visit — I think documentation, telecom, and email concurrance would be good for you guys to do.
Review the drawings with them and determine if this is located in an area closer to one edge or the other where it may be sectioned away asfm delivery or something. How deep are the cracks? The equipment shall be of the pulse-echo straight beam asstm.
Yasin – I cannot view your photo either You would have to take an accurate macro section to see the extent of the cracking and then determine why the cracks are there.
ASTM reapproved. As I understand it there are no welds involved. Grid scanning shall be continuous along perpendicular grid lines or shall be continuous along parallel paths, transverse to the major plate axis, or shall be continuous along parallel paths, parallel to the major plate axis, or smaller centers.
Document your query by email because you never know when cases can come back to haunt you. Bring it to the attention of your supervisor and if they deem it acceptable then let them sign for the weld.
When we take signal we cut the plate and look with microscope. Link to Active This link will always route to the current Active version of the standard. JeffThis plate will not be machine. With a fracture already present the strength of the material is compromised and is not reliable without further analysis dependent upon the intended use of the product. A number in parentheses indicates the year of last reapproval. Where do you draw the line on acceptable cracks then?
I personally would count these small cracks as grossly unacceptable because there is obviously a lack of consistent workmanship in these welds. The test shall be done by one of the following methods: That is the main question you have to ask yourself. What type of material is this Yasin?
Again, I think it is great that you take this much effort into something like this for your company, as well as the cutomer. Your photo did not show on the post.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. 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.
Thanks for all response my question.
What does your in-house procedure say about cracks. 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. Hope that helps you The values stated in each system are not exact equivalents, therefore, each system must be used independently of the other. I know you have a reference standard of some sort that your company wants you to establish the Sensitivity on a small SDH?
Nondestructive examination of the material shall be conducted in an area free of operations that interfere with proper functioning of the equipment. 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 instructed by management” or something similar.
I want to reject this material but it must be based ashm standard. What is your idea? As a customer I would not accept it. One thing that was not mentioned is the material of the plate? Who knows what else is wrong that you are not picking up. There is small stepwise crack in material. What is thickness of plate?
To me any crack is a gross defect while to others it may not be. A45 line is that ASTM is a workmanship based criteria and when dealing q435 cracks you need to use an ECA based on fracture mechanics. You said the plate is not going to be machined either – I suppose this plate that goes to the crane would not be a load-bearing plate and might attach with rivots or something?
ASTM A435/A435M – 17
Historical Version s – view previous versions astk standard. Setup is a 2. An equivalent standard is one which covers the qualification and certification of ultrasonic nondestructive examination candidates and which is acceptable to the purchaser.
Realistically do you want material that has detectable cracks in it used for the load bearing parts of a crane truss? You say these indications are only mm long. It was developed to assure delivery of steel plates free of gross internal discontinuities such as pipe, ruptures, or laminations and is to be used whenever the inquiry, contract, order, or astn states that the plates are to be subjected to ultrasonic examination. If you accept this plate and the crane truss fails and the material is traced back to your satm and then to you as the inspector is your butt covered?
You are a little off topic.