+AMD1:2026 CSV 磁性材料 第8-5部分：个体材料规范 具有规定性能和磁化强度的电工带材和板材

[中文适用范围]： IEC 60404-8-5:2020+AMD1:2026 CSV 标准规定了具有特定机械性能和磁极化率的电工钢带和钢带的牌号。该标准具体涵盖一般要求、机械性能、磁极化率、几何特征、公差及工艺特性，并规定了检验程序。本文件适用于用于旋转电机极和轮圈制造的电工业用钢带和钢片。按照制造工艺，牌号分为两类：热轧牌号；冷轧牌号。它们对应于 IEC 60404-1 中的 D21 类。本版本与前一版本相比，主要技术变化包括：a) 产品范围扩展，纳入了改进型牌号；b) 将“平直度”拆分为“边浪（波浪因子）”和“残余曲率”，以与 IEC 60404-9 保持一致；c) 几何特性测试试样长度由 2 米调整为 1 米。 [外文原描述]： IEC 60404-8-5:2020+AMD1:2026 CSV defines the grades of electrical steel strip and sheet with specified mechanical properties and magnetic polarization. In particular, it gives general requirements, mechanical properties, magnetic polarization, geometric characteristics, tolerances and technological characteristics, as well as inspection procedures. This document applies to electrical steel strip and sheet intended for the construction of poles and rims of rotating electrical machines. The grades are grouped into two classes according to their manufacturing process: - hot-rolled grades; - cold-rolled grades. They correspond to Class D21 of IEC 60404-1. This edition includes the following significant technical changes with respect to the previous edition: a) extension of the range of products to include the improved grades; b) division of "flatness" into "edge wave (wave factor)" and "residual curvature" in consistent with IEC 60404-9; c) change length of test specimen for determinations of geometrical characters from 2 m to 1 m.