Standard

BS ISO 21988:2006

Abrasion-resistant cast irons. Classification

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This International Standard defines the grades of abrasion-resistant white cast irons. It specifies the grades in terms of:

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 ≤ 14 %;

Cr > 14 % to ≤ 18 %;

Cr > 18 % to ≤ 23 %;

Cr > 23 % to ≤ 30 %;

Cr > 30 % to ≤ 40 %.

Product Details

Descriptors

Chemical composition

White cast-iron

Hardness

Ferrous alloys

Abrasion-resistant materials

Grades (quality)

Nickel-containing alloys

Classification systems

Chromium-containing alloys

Unalloyed cast-iron

Alloy cast-iron

Brinell hardness measurement

Castings

Cast-iron

ICS Codes

77.080.10 Irons

Committee

ISE/111

International relationships

Identical to:

ISO 21988:2006

ISBN

978 0 580 49901 2

Publisher

BSI