This document specifies requirements for phased array ultrasonic examination of steel castings with low ultrasonic attenuation. It is applicable to ferritic, bainitic and martensitic microstructures. It specifies the registration levels and acceptance criteria.

This document is applicable to the ultrasonic examination of steel castings with a wall thickness of 600 mm or less.

For higher wall thicknesses, special agreements apply regarding the test procedure and recording levels.

This document does not apply to austenitic steels and cast irons, lamellar graphite and spheroidal cast irons and welded assemblies. For other ferrous materials, this document gives guidance. The registration levels and acceptance criteria are to be adapted.

In this document, phased array is used both for phased array technique and TFM technique.