本文件规定了以下等级锻造工具钢的要求: a） 非合金冷作工具钢； b） 合金冷作工具钢； c） 合金热作工具钢； d） 高速工具钢。 如果未另行说明，本文件适用于所有类型的热轧、锻造、冷拔或冷轧产品或粉末冶金生产的产品，这些产品在6.2和表1中给出的一种表面和热处理条件下供应。 注:表2、表4、表6和表8仅涵盖具有一定国际重要性的钢材，但这并不意味着所有工业国家都有这些钢材。此外，区域、国家或公司标准中规定了许多其他工具用钢。 如果工具的耐热性特别重要，例如用于热成型玻璃的工具，则材料选择基于ISO 4955。

This document specifies requirements for the following grades of wrought tool steels: a) non-alloy cold-work tool steels; b) alloy cold-work tool steels; c) alloy hot-work tool steels; d) high-speed tool steels. If not stated otherwise, this document applies to all types of hot-rolled, forged, cold-drawn or cold-rolled products or products produced by powder metallurgy, which are supplied in one of the surface and heat-treatment conditions given in 6.2 and Table 1. NOTE Tables 2, 4, 6 and 8 cover only those steels which have gained certain international importance, which does not mean, however, that they are available in all industrial countries. In addition, a number of other steels for tools are specified in regional, national or company standards. Where the heat resistance of the tools is of particular importance, as for example in the case of tools for hot forming glass, the material selection is based on ISO 4955.