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ISO 1083:2004

Spheroidal graphite cast irons - Classification

This standard has been reviewed and then confirmed in 2008 
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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:

  • separately cast samples;
  • cast-on samples;
  • samples cut from a casting.

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.


  • Edition: 3 (Monolingual) ICS: 77.080.10
    Status: Published Stage: 90.60 (2013-09-18)
    TC/SC: ISO/TC 25 Number of Pages: 31
  • Revises: ISO 1083:1987

  • No corrigenda or amendments available

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