ASME has no requirement for hardness and limited for macro testing. For work to ASME the requirement for these tests generally would be from your customer specifications or contract and as such the direction should come from them. Without direction from your customer, you could have your laboratory follow either the recommendations for hardness testing in either API RP582, Welding Guidelines for the Chemical, Oil, and Gas Industries, or BS EN 1043-2, Destructive tests on welds in metallic materials – Hardness Test, Part 2. Micro hardness testing on welded joints. While not the same, the methodologies for indent location are similar.
Macro testing typically will involve an evaluation of the entire weld and HAZ after polishing and etching. If performed I would recommend that the a photo of the entire weld be taken at a suitable magnification for archival documentation. ASME IX only has discussion on macro evaluation of fillet welds, QW-183, and tube-to-tubesheet mockup welds, QW-193.1.3.
For macroscopic examination, EN ISO 15614-1:2004, §7.4.4 States the following:
“The test specimen shall be prepared and etched in accordance with EN 1321 on one side to clearly reveal the fusion line, the HAZ, and the build up of the runs. The macroscopic examination shall include unaffected parent metal and shall be recorded by at least one macro-reproduction per procedure test. The acceptance levels shall be in accordance with 7.5.”
Your laboratory should have one of these and be able to perform accordingly.
John A. Henning
Welding & Materials
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Sasi
Sent: Friday, September 28, 2012 4:52 AM
To: materials-welding@googlegroups.com
Subject: [MW:15417] HARDNESS and Macro location
Dear sirs
I already done Procedure Qualification Test as per ASME Sec IX and sent it for mechanical and Destructive testing. The LAB people they are saying to detemine the location of Hardness testing and Macro testing. How I can reply to them. Please advise me . Quick reply , it will be very useful to me.
Thanks and Regards
Sasikumar.R
This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient of this communication, we request you to notify the sender immediately by return email and destroy all copies and the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email is strictly prohibited.
The recipient acknowledges that Punj Lloyd Limited or its subsidiaries and associated companies (collectively "Punj Lloyd Group") are unable to exercise control or ensure or guarantee the integrity of/over the contents of the information contained in e-mail transmissions and further acknowledges that any view, opinion or advice expressed in this message are those of the individual sender and no binding nature of the message shall be implied or assumed unless the sender does so expressly with due authority of Punj Lloyd Group.
Although we have taken all reasonable precautions to ensure that this communication is free from viruses. We do not assume responsibility for any loss or damage arising from the use of this email.
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
______________________________________________________________________
The information in this email is confidential, and is intended solely for the addressee(s). If you are not the intended recipient of this email please let us know by reply and then delete it from your system; you should not copy this message or disclose its contents to anyone. The internet can not guarantee the integrity of this message. HAMON (and its subsidiaries) shall (will) not therefore be liable for the message if modified.
______________________________________________________________________
No comments:
Post a Comment