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. You say that you get a reflection from the middle of the plate thickness Material is normal carbon steel and very low alloy element Niobyum and Titanium.
May be you understand me now. Csaba; you said “any intermediate reflectors are cause for rejection” But we can not do this because we have to work with respect to standard. You are a little off s435. It looks like your backwall signal is far too high it is off screen for the ASTM test. It is informational only and not an official part of the standard; the full text of the standard itself must be aztm to for its use and application. Historical Version s – view previous versions of standard.
Now we take this signal from middle of plate. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Many times customers really don’t know astn ASTM they ‘need’ to call out or really understand the in-depth NDT side of things — that’s where buying from a company that has excellent inspectors like you might save them big trouble down the road!
You said the plate is not going to be machined either – I suppose this plate that goes to the crane would not be a a453 plate and might attach with rivots or something? Link to Active This link will always route to the current Active version of the standard. Brenton ; forget the weld.
Your photo did not show on the post. Its future usefulness has to be decided by designer or client not by UT man. Q435 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.
Yasin Fullfil all the requirements of Reference standard.
How deep are the cracks? JeffThis plate will not be machine. Otherwise in general in UT cracks are not acceptable normally under most standards.
Thickness of plate are 40 mm50 mm and rarely 80 mm. Realistically do you want material that has detectable cracks in it used for the load bearing parts of a crane truss? Yasin – You are quite asgm to my opinions, and I thank you for answering the other guys and for providing those awesome images!! As you described ” Plate is OK as per referece standard”.
a35 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 specification states that the plates are to be subjected to ultrasonic examination.
An equivalent standard is one which covers the qualification and certification of ultrasonic nondestructive examination candidates and which is acceptable to the purchaser.
Technically the product is acceptable to the ASTM standard. What type qstm material is this Yasin? I personally would not accept the astmm unless I had it in writing that the small cracks you saw under macro section were acceptable. Link to Active This link will always route to the current Active version of the standard. Bottom line is that ASTM is a workmanship based criteria and when dealing with cracks you need to use an ECA based on ashm mechanics.
Where do you draw the line on acceptable cracks then? 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.
Active view current version of standard.
Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates
If you accept this plate and the crane truss fails and the material is traced back to your company and then to you as the inspector is your butt covered? What size and frequency probe are you using? We had a client who bought a 6″ mm plate in order to make some gears. Bring it to the attention of your supervisor and if they deem it acceptable then let them sign for the weld. 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.
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. Setup is a 2. As I understand it there are no welds involved. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. What is your idea? One thing that was not mentioned is the material of the plate?