weld flaw
3.The design of TCG-2000 type on line device of vortex flow flaw detection for weld metal in the high frequency straight bead welding pipe adopt longitudinal magnetization way for the local zone in the weld metal. As a result of the ferromagnetic weld metal saturation, the defects are liable to detect.
5.According to the results of the CTOD (crack tip opening displacement) test and the SINTAP (structural integrity assessment procedure) suggested by the European Community, the assessment was carried out of the surface flaw at the toe of a weld in API 5LX65 pipeline with the given crack size and load being known.

