1.1 本规范 2 锻造或轧制盖UNS N06030、UNS N06035、UNS N06022、UNS N06200、UNS N06059、UNS N10362、UNS N06686、UNS N08020、UNS N08367、UNS N10276、UNS N10665、UNS N10675、UNS N10629、UNS N08031、UNS N06045、UNS N06025、UNS N06699和UNS R20033 3 用于腐蚀性高温服务的管道法兰、锻造配件、阀门和零件。 1.2 以英寸-磅单位表示的值应被视为标准值。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准。 1.3 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任熟悉所有危害，包括制造商提供的本产品/材料的适当安全数据表（SDS）中确定的危害，建立适当的安全、健康和环境实践，并确定使用前监管限制的适用性。 1.4 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》中确立的国际公认的标准化原则制定的。

1.1 This specification 2 covers forged or rolled UNS N06030, UNS N06035, UNS N06022, UNS N06200, UNS N06059, UNS N10362, UNS N06686, UNS N08020, UNS N08367, UNS N10276, UNS N10665, UNS N10675, UNS N10629, UNS N08031, UNS N06045, UNS N06025, UNS N06699, and UNS R20033 3 pipe flanges, forged fittings, and valves and parts intended for corrosive high-temperature service. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use. 1.4 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.