ISO 1083:2018

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Spheroidal graphite cast irons - Classification

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Spheroidal graphite cast irons - Classification

PUBLISH DATE 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 ISO 2531 and ISO 7186;
  • highly alloyed (austenitic) spheroidal cast irons which are specified in accordance with ISO 2892;
  • ausferritic cast irons which are specified in accordance with ISO 17804.
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