ISO 21988-2006 耐磨铸铁.分类

标准号：ISO 21988-2006
中文标准名称：耐磨铸铁.分类
英文标准名称：Abrasion-resistant cast irons - Classification
标准类型：H41;J31
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：H41;J31
国际标准分类号：77.080.10
引用标准：ISO/TR 15931;ISO 6506-1
适用范围：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 % tos; 14%; Cr>14%to< 18%; Cr>18%to<23%; Cr>23%to^30%; Cr > 30 % to ^ 40 %.