Abstract
The variations in the achieved level of mechanical working across the thickness of a mechanically worked product causes variations in the strains induced in the cross section. Though the subsequent thermal treatments are aimed to have uniformity across the cross section, in some cases it is observed that it is not happening. As these imperfections do not show greater abnormality in its mechanical properties, the standard qualification procedures for evaluating such mechanically worked products is not that much sensitive to indicate such imperfections. However, in subsequent downstream processes like welding and x-ray radiography of the weld joint of such products, say a rolled ring welded with sheets/plates and subsequent x-ray, shows these imperfections and attracts special metallographic test procedure for deciding its acceptance. This paper explains a non-destructive test procedure that can reveal such imperfections. The procedure was applied on a rolled ring and the observations and an inference of the non-destructive test procedure was verified by doing standard metallography investigations.