标准摘要
[中文适用范围]: 本国际标准定义了耐磨白口铸铁的牌号。 它根据以下方面规定了等级: ——化学成分; ——硬度。 本国际标准涵盖的耐磨白口铸铁类型为: a) 非合金或低合金铸铁; b) 镍铬铸铁,涵盖两种通用类型:4% Ni 2% Cr 铸铁; 9% Cr 5% Ni 铸铁; c) 高铬铸铁,涵盖五个铬含量范围:Cr>11% tos; 14%; Cr>14%至<18%; Cr>18%至23%至^30%; Cr > 30 % 至 ^ 40 %。 [外文原描述]: ISO 21988:2006 defines the grades of abrasion-resistant white cast irons. It specifies the grades in terms of chemical composition and hardness. The types of abrasion-resistant white cast irons covered are unalloyed or low alloy cast irons, nickel-chromium cast irons and high chromium cast irons.
英文名称Abrasion-resistant cast irons — Classification