This European Standard specifies the requirements for the ultrasonic examination of steel castings (with ferritic structure) for highly stressed components and the methods for determining internal discontinuities by the pulse echo technique.
This European Standard applies to the ultrasonic examination of steel castings which have usually received a grain refining heat treatment and which have wall thicknesses up to and including 600 mm.
For greater wall thicknesses, special agreements apply with respect to test procedure and recording levels.
This European Standard does not apply to austenitic steels and joint welds.
This document (EN 12680-2:2003) has been prepared by Technical Committee CEN/TC 190 "Foundry Technology", the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2003, and conflicting national standards shall be withdrawn at the latest by July 2003.
Within its programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 4.10 "Inner defects" to prepare the following standard:
EN 12680-2, Founding — Ultrasonic examination — Part 2: Steel castings for highly stressed components.
This is one of three European Standards for ultrasonic examination. The other standards are:
EN 12680-1, Founding — Ultrasonic examination — Part 1: Steel castings for general purposes.
EN 12680-3, Founding — Ultrasonic examination — Part 3: Spheroidal graphite cast iron castings.
