Thanks & Regards
J.Gerald Jayakumar
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/26135762.456028.1673784800697%40mail.yahoo.com.
Thanks & Regards
J.Gerald Jayakumar
Thanks & Regards
J.Gerald Jayakumar
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/670180816.905141.1673787990390%40mail.yahoo.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAHt4qw9NbBOb4ueDJrrZkSb3JTSuh%2Bmq60UVxiDoC7zS4n%3Dsow%40mail.gmail.com.
Based on the information provided, the impact testing requirements for your PQR qualification will depend on the service temperature and thickness of the material being welded.
For API 5L X60 pipe, if the service temperature is below -29°C (-20°F), impact testing is required as per ASME Section IX QW-451.1. In this case, the required impact test temperature for base metal and weld metal is -46°C (-50°F).
For A537 CL1 rolled fittings, impact testing is required as per ASME Section VIII Div.1 UCS-66. The minimum design metal temperature (MDMT) of the vessel or equipment being fabricated will determine the required impact test temperature for the material being welded. If the MDMT is below the impact test exemption curve specified in UCS-66, impact testing is required. The required impact test temperature will be the lower of the MDMT and the impact test exemption curve temperature.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/1958138645.1041658.1673849418202%40mail.yahoo.com.