METHOD OF ULTRASONIC FLAW DETECTION OF PIPE

摘要

A method of ultrasonic flaw detection of a pipe applicable, for example, to an austenic heat resisting cast steel pipe used as a hydrogen manufacturing reformer tube. This method is free from adverse influence of macrostructures unevenly distributed in the peripheral direction of the pipe, and enables a quantitative grasp of flaws in a base material and a weld of the pipe.