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