1.1 本规范描述了金属基材上电沉积镍钴和电铸用电沉积镍钴的耐腐蚀涂层的要求。 注1: 镍钴合金主要作为涂层沉积在钢制品上。它也可以电沉积在铁、不锈钢、铝、钛和任何其他金属基材上。 注2: 镍钴合金涂层具有0.08的低摩擦系数，在相互接触且容易磨损的零件表面上提供干燥润滑剂。 1.2 本规范包括一种加速暴露试验方法，以评估腐蚀和磨损对涂层的影响，并包括向买方报告结果的方法。 1.3 本规范包含一个分类方案，该方案根据监测水平确定了厚度的使用条件、沉积物的类别，并根据沉积后使用的补充涂层确定了类型。 1.4 涂层厚度范围为5至>30μm，可应用于机加工零件、弹簧、锁扣、螺纹零件、紧固件等。 镀层也可用于电铸需要高强度的零件，合金保持在50 % 镍钴。 1.5 镍钴合金用于保护与腐蚀性环境接触的黑色金属，例如:石油和天然气生产设施、沿海海洋和用于木材处理的ACQ（碱性铜季铵盐）处理。 1.6 单位- 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值不一定是精确的等价物；因此，为确保符合本标准，每个系统应独立使用，且两个系统的值不得组合。 1.7 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。 1.8 本标准已修订，以符合有害物质的限制 RoHS要求 旨在限制工人和公众接触有毒金属。镍钴合金不包含六种限制性有害物质中的任何一种。 1.9 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 describes the requirements for corrosion-resistant coatings of electrodeposited nickel-cobalt on metallic substrates and electrodeposited nickel-cobalt used for electroforming. Note 1: The nickel-cobalt alloy is principally deposited as a coating on steel products. It can also be electrodeposited on iron, stainless steel, aluminum, titanium, and any other metal substrate. Note 2: The nickel-cobalt alloy coating has a low coefficient of friction of 0.08 that provides a dry lubricant on part surfaces that are in contact with each other and are subject to galling. 1.2 This specification incorporates an accelerated exposure test method to evaluate the effects of corrosion and galling on the coating, and incorporates a means of reporting the results to the purchaser. 1.3 The specification incorporates a classification scheme that establishes service conditions for thickness, classes of deposits based on the level of monitoring, and type based on supplemental coatings used after deposition. 1.4 The coating thickness ranges from 5 to >30 μm, and it can be applied to machined parts, springs, latches, threaded parts, fasteners, etc. The deposit can also be used to electroform parts requiring high strength with the alloy being maintained at 50 % nickel-cobalt. 1.5 The nickel-cobalt alloy is used to protect ferrous metals in contact with corrosive environments such as: oil and gas production facilities, coastal marine, and ACQ (Alkaline Copper Quaternary) treatments for wood treatments. 1.6 Units— The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.7 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. 1.8 This standard has been revised to comply with the Restriction of Hazardous Substances RoHS Requirements that seek to limit the exposure of workers and the public to toxic metals. The nickel-cobalt alloy does not contain any of the six Restricted Hazardous Substances. 1.9 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.