BS ISO 1083:2018

This document defines the grades and the corresponding requirements for spheroidal graphite cast irons.

This document specifies two groups of spheroidal graphite cast iron grades by a classification based on mechanical properties measured on machined test pieces prepared from cast samples. The first group deals mainly with ferritic to pearlitic grades. The second group deals with solid-solution strengthened ferritic grades.

This document also gives an informative classification as a function of hardness.

This document does not apply to the following:

• spheroidal graphite cast irons used for pipes, fittings and accessories which are specified in accordance with ISO2531 and ISO7186;

• highly alloyed (austenitic) spheroidal cast irons which are specified in accordance with ISO2892;

• ausferritic cast irons which are specified in accordance with ISO17804.