1.1本规范涵盖两种铁-镍-钴合金，前者（UNS号K94630），名义上含有29%的镍、17%的钴和53%的铁，后者（UNS号K94620），名义上含有27%的镍、25%的钴和48%的铁，呈线材、棒材、带材、板材和管材的形式，主要用于用氧化铝陶瓷钎焊金属-陶瓷密封件，用于真空电子应用。除非另有说明，否则所有条款均适用于这两种合金。 1.2以英寸-磅为单位的数值应视为标准值。括号中给出的值仅供参考。 以下危险警告仅适用于本规范的试验方法部分、章节和。 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和健康实践，并确定监管限制的适用性。

1.1 This specification covers two iron-nickel-cobalt alloys, the former, (UNS No. K94630), containing nominally 29 % nickel, 17 % cobalt, and 53 % iron, the latter, (UNS No. K94620), nominally 27 % nickel, 25 % cobalt and 48 % iron, in the forms of wire, rod, bar, strip, sheet, and tubing, intended primarily for brazed metal-to-ceramic seals with alumina ceramics, for vacuum electronic applications. Unless otherwise indicated, all articles apply to both alloys. 1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. The following hazard caveat pertains only to the test method portion, Sections and of this specification. 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 and health practices and determine the applicability of regulatory limitations prior to use.