bend of dissimilar weld

[asghar...@gmail.com]

Dear All.

In ASME IX, don't use ''shall'' for longitudinal bend test for dissimilar joint, now if contractor used side bend test for it's PQR and after retesting satisfactory result reached, we can accept it or not?

In ASME IX, criteria for bending of clad is 1.5mm but can extended to 3 mm if occurred in interface, now if we observed a defect with length less than 3 mm that some of length of it is in fusion line of clad and base metal, is it accepted or not?

Regards

[Kannayeram Gnanapandithan]

Where it is mentioned for Longitudinal bend test for dissimilar material

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[Ali Asghari]

Dear Mr.

QW-161.5

Regards.

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[HENNING John]

The longitudinal bend test is an optional alternate to the cross weld bend test for dissimilar metal welds.  When there are significant differences in material properties that will result in fracture of the side bend tests you can opt to do a longitudinal bend test.  It is not a requirement but an option. 

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