This European Standard defines grades and the corresponding requirements for malleable castirons.

This European standard specifies five grades of whiteheart malleable castiron and nine grades of blackheart malleable castiron, based on mechanical properties measured on cast samples (which are test pieces).

This European Standard specifies Brinell hardness values determined only when these values are requested by the purchaser.

This European Standard does not cover technical delivery conditions for malleable castiron castings. Reference should be made to EN 1559‑1 [3] and EN 1559‑3 [4].

This European Standard does not cover chemical composition, except phosphorous (see Clause 6).

Grade EN-GJMB-300-6 (5.4100) malleable castiron shall not be used for any pressure application, e. g. also pressure applications not covered by the Pressure Equipment Directive 97/23/EC.