30.20 Jun 19, 2026
ISO
ISO/TC 25
International Standard
ISO 21988:2006 defines the grades of abrasion-resistant white cast irons. It specifies the grades in terms of chemical composition and hardness. The types of abrasion-resistant white cast irons covered are unalloyed or low alloy cast irons, nickel-chromium cast irons and high chromium cast irons.
PUBLISHED
ISO 21988:2006
PROJECT
ISO/CD 21988
30.20
CD study/ballot initiated
Jun 19, 2026
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