scope:

This International Standard defines the grades of abrasion-resistant white cast irons. It specifies the grades in terms of: chemical composition; hardness. The types of abrasion-resistant white cast irons covered by this International Standard are: a) unalloyed or low alloy cast irons; b) nickel-chromium cast irons covering two general types: 4 % Ni 2 % Cr cast irons; 9 % Cr 5 % Ni cast irons; c) high chromium cast irons covering five ranges of chromium content: Cr 11 % to u 14 %; Cr 14 % to u 18 %; Cr 18 % to u 23 %; Cr 23 % to u 30 %; Cr 30 % to u 40 %.