scope:

This European 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 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 four ranges of chromium content:

- 11 % < Cr ≤ 14 %;

- 14 % < Cr ≤ 18 %;

- 18 % < Cr ≤ 23 %;

- 23 % < Cr ≤ 30 %.

This European Standard does not define the abrasion resistant grades of ausferritic spheroidal graphite cast irons which are subject of EN 1564.