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
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