标准摘要
[中文适用范围]： 适用于由 IEC 404-1 合金类别 C2、E1、E3 和 E4 定义的硅铁和镍铁合金制成的叠片。特别是，这些要求涉及 IEC 740（未来第 1 部分）中规定的完全热处理 ST 中的叠片。 [外文原描述]： Specifies requirements for the minimum permeabilities of laminations made of silicon-iron and nickel-iron alloys as defined by the alloy classes C2, E1, E3 and E4 of IEC 60404-1.
英文名称Laminations for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Specification for the minimum permeabilities of laminations made of soft magnetic metallic materials