scope:

This European Standard defines the grades and the corresponding requirements of spheroidal graphite cast irons.

This European Standard specifies a classification based on mechanical properties measured on machined test pieces prepared from:

- separately cast samples;

- cast-on samples;

- samples cut from a casting.

This standard also specifies a classification as a function of hardness.

This standard does not cover technical delivery conditions for spheroidal graphite iron castings, see EN 1559-1 and EN 1559-3.

This standard does not apply to spheroidal graphite cast iron used for pipes, fittings and accessories which are the subject of EN 545, EN 598, EN 969 and ISO 2531.