1 Scope
This European Standard defines the grades and the corresponding requirements for spheroidal graphite cast irons.
This European Standard specifies 2 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 with ferritic to pearlitic grades. The second group deals
with solid-solution strengthened ferritic grades.
This European Standard does not cover technical delivery conditions for iron castings
(see EN 1559‑1 [3] and EN 1559‑3 [4]).
This European Standard does not cover all aspects of:
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— ausferritic spheroidal graphite cast irons which are specified in EN 1564 [5];
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— low alloyed ferritic spheroidal graphite cast irons which are specified in EN 16124 [6];
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— austenitic cast irons which are specified in EN 13835 [7];
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— spheroidal graphite cast irons used for pipes, fittings and their joints which are the subject of EN 545 [8], EN 598 [9] and EN 969 [10];
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— the grades of spheroidal graphite cast iron as specified in EN 545 which are used for products such as industrial valves, non industrial manually operated shut-off valves and flanges and their joints, which are the subject of the applicable European product standards.