ISO 1083:2018

April 2018

International standard Current

Spheroidal graphite cast irons - Classification

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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Main informations

Collections

International ISO standards

Publication date

April 2018

Number of pages

38 p.

Reference

ISO 1083:2018

ICS Codes

77.080.10 Irons

Print number

Sumary

Spheroidal graphite cast irons - Classification

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.

Replaced standards (1)

ISO 1083:2004

July 2004

International standard Cancelled

Sphéroidal graphite cast irons - Classification

ISO 1083:2004 defines the grades and the corresponding requirements for spheroidal graphite cast irons. It specifies a classification based on mechanical properties measured on machined test pieces prepared either from: <ul><li>separately cast samples;</li><li>cast-on samples;</li><li>samples cut from a casting.</li></ul> ISO 1083:2004 also specifies a classification as a function of hardness. It does not apply to spheroidal graphite cast iron used for pipes, fittings and accessories nor to highly alloyed (austenitic) spheroidal cast irons or to ausferritic cast irons.

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