Materials & Welding: [MW:14061] Impact test report of PTC

Thursday, April 5, 2012

Low temp vessel PTC for head to shell c-seam; Head : Cap SA420WPL6, Pipe: SA333 Gr 6; Filler metal ER70S2+ E7018-1; GTAW+ SMAW process.

PTC used as filler metal is not SFA classified for low temp -48deg C

Impact test results: 18, 14, 12 Joules test piece size 10 x 7.5 x 55 @ -48deg C;

Average value required for 10x 7,5x55 is 15joule; single specimen 2/3 x 15: 10joule

Reference ASME SEC VIII Div-1 2011a UG 84 & UCS 67

Dear Expert,

Let me have your advice whether these results are acceptable.

Thanks

Aly

Materials & Welding