1.1 本规范涵盖通过基于激光和电子束的全熔粉末床熔融工艺增材制造UNS S31603部件。通过这些工艺生产的部件通常用于需要类似于机加工锻件和锻造产品的机械性能的应用中。根据本规范制造的部件通常（但不一定）通过机加工、研磨、电火花加工（EDM）、抛光等进行后处理，以实现所需的表面光洁度和关键尺寸。 1.2 本规范适用于额外制造的UNS S31603部件的购买者或生产商，或两者兼而有之，以确定要求并确保部件性能。 1.3 建议用户使用本规范作为获得符合委员会成员协商一致制定和修订的最低验收要求的部件的基础。 1.4 可以通过在采购订单中添加一个或多个补充要求来满足被认为更严格的用户要求，这些补充要求可能包括但不限于补充要求S1-S16中列出的要求。 1.5 本规范中规定的成分要求不符合外科植入物等级UNS S31673的成分要求。 1.6 以国际单位制表示的数值应视为标准。其他单位仅供参考。 1.7 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification covers additive manufacturing of UNS S31603 components by means of laser and electron beam-based full melt powder bed fusion processes. The components produced by these processes are used typically in applications that require mechanical properties similar to machined forgings and wrought products. Components manufactured to this specification are often, but not necessarily, post processed via machining, grinding, electrical discharge machining (EDM), polishing, and so forth to achieve desired surface finish and critical dimensions. 1.2 This specification is intended for the use of purchasers or producers, or both, of additively manufactured UNS S31603 components for defining the requirements and ensuring component properties. 1.3 Users are advised to use this specification as a basis for obtaining components that will meet the minimum acceptance requirements established and revised by consensus of the members of the committee. 1.4 User requirements considered more stringent may be met by the addition to the purchase order of one or more supplementary requirements, which may include, but are not limited to, those listed in Supplementary Requirements S1–S16. 1.5 The compositional requirements specified in this specification do not meet the compositional requirements for surgical implant grade UNS S31673. 1.6 The values stated in SI units are to be regarded as the standard. Other units are included only for informational purposes. 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 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.