1.1 本规范涵盖了技术上重要的商用硬磁铸造和烧结永磁体，通常称为Alnico。 1.2 铝镍钴磁体具有近似于残余磁感应的磁性， B r ，从0.52 T（5200 G）到1.35 T（13500 G）和矫顽力， H 断路器 ，从38 kA/m（475 Oe）到175 kA/m（2200 Oe）。其特定磁滞行为（退磁曲线）可以使用测试方法进行表征 A977/A977M . 1.3 以国际单位制表示的数值应视为标准值。括号中给出的值是到习惯（cgs）的数学转换- emu和英寸磅）单位，仅供参考，不被视为标准。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 This specification covers technically important, commercially available, magnetically hard, cast and sintered permanent magnets known commonly as Alnico. 1.2 Alnico magnets have approximate magnetic properties of residual magnetic induction, B r , from 0.52 T (5200 G) to 1.35 T (13500 G) and coercivity, H cB , from 38 kA/m (475 Oe) to 175 kA/m (2200 Oe). Their specific magnetic hysteresis behavior (demagnetization curves) can be characterized using Test Method A977/A977M . 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to customary (cgs-emu and inch-pound) units which are provided for information only and are not considered standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.