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ISO 17804:2020

Founding — Ausferritic spheroidal graphite cast irons — Classification

Jun 4, 2020

General information

90.93     Oct 17, 2025

ISO

ISO/TC 25

International Standard

77.080.10  

English  

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Scope

This document defines the grades and the corresponding requirements for ausferritic spheroidal graphite cast irons.
This document specifies five grades of ausferritic spheroidal graphite cast iron by a classification based on mechanical properties determined on machined test pieces prepared from:
— separately cast samples, side-by-side cast or cast-on samples;
— samples cut from a casting.
This document also specifies two grades by a classification as a function of hardness.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 17804:2005

NOW

PUBLISHED
ISO 17804:2020
90.93 Standard confirmed
Oct 17, 2025