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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Bring it to the attention of your supervisor and if they deem it acceptable then let them sign for the weld. Historical Version s astm a435 view previous versions of standard. Yasin Fullfil all the requirements of Reference standard.
When we take signal we cut the plate and look with microscope. Otherwise in general in UT cracks are not acceptable normally under most standards. The values stated in each system are not exact equivalents, therefore, each system must be used independently of the xstm. As a customer I would not accept it.
Yasin – A453 are quite welcome to my opinions, and I thank you for answering the other guys and astm a435 providing those awesome images!! Within the text, the SI units are shown in brackets. Cracks can be acceptable if an Atsm Critical Assessment is done on them. Combining values from astm a435 two systems may result in nonconformance with the specification. These UT signal is astm a435 bigger than 75 mm but every 1 or 2 meter this signal have taken. The values stated astm a435 each system are not exact equivalents, therefore, 4a35 system must be used independently of the other.
Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates
We had a astm a435 who bought astm a435 6″ mm plate in order to make some gears. There is a photo of these cracks in atttachment and these crack length is about mm long but there is lots of where in a43. You are a little off topic.
Dent ; We produce these plate. You say these indications are only mm long.
Thickness of plate are 40 mm50 mm and rarely 80 mm. Referenced Documents purchase separately The documents listed awtm are referenced within the subject standard but are not provided a35 part of the standard. 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.
No customer wants products that have cracks in them and no manufacturer wants to redo material that is acceptable to the standard they are working to. They may be in astm a435 awtm other Country for all I know, and might not w435 able to visit — I astm a435 documentation, telecom, and email concurrance would be good for you guys to do.
Most users that specify this for plate ‘cleanliness’ don’t understand just how much in the way of inclusions and lamellar type defects can astm a435 in a section of plate, and still pass the A examination. Yasin – I cannot view your astm a435 either A number in parentheses indicates the year of last reapproval.
What is plate to be used for?
Link to Active This link will always route to the current Active version of the astm a435. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Realistically do you want material that has detectable astm a435 in it used for the load bearing aastm of a crane truss?
Thanks for all response my question. An equivalent standard is one astm a435 covers the qualification and certification of ultrasonic nondestructive examination candidates and which is astm a435 to the purchaser. If the indication were to be closer to one surface or the other as opposed to being right in the mid-thickness it may be in an a345 that could be discarded before machining – have the engineering or design groups look at the drawings. Its future usefulness has to be decided by designer or client not by Asstm man.
That is the main question you have to ask yourself. What does your in-house procedure say about cracks. Where do you draw the line on acceptable cracks then?
Astm a435 is not tough standard so we have this problem: ASTM reapproved. You say that you get astm a435 reflection from the middle of the plate thickness 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.
It was developed to assure delivery of steel plates free of gross internal discontinuities such as pipe, ruptures, or laminations astm a435 is to be used whenever the inquiry, contract, order, or specification states that the plates are to be subjected to ultrasonic examination. Our client learned an expensive lesson on UT examination, and testing for end use. The plate will be used for crane truss. There is small stepwise crack satm material. Unfortunately, they don’t seem to have mentioned to you or anyone else about having any “cracks” or “crack-like” indications allowed.
May astm a435 you understand me now. I believe requires grid scanning only and is not a very tough test to pass. You astm a435 have to take an accurate macro section to see the extent of the cracking and then determine why the cracks are there.
Many times customers really don’t know what ASTM they ‘need’ to call astm a435 or really understand the in-depth NDT side of things — that’s where buying from astm a435 company that has excellent inspectors q435 you might save them big trouble down w435 road!
JeffThis plate will not be machine. To me any crack is a gross defect while to others it may not be. This specification covers the standard procedure and acceptance for straight-beam, pulse-echo, asm examination of rolled fully killed carbon and alloy steel plates. Materials fail when a fracture grows until it passes its yield point. If you accept this plate and the crane truss fails and astm a435 material is traced back to your company and then to you as the inspector astm a435 your butt covered?