1.1 这些试验方法包括ASTM、EN、， 2. ISO， 3. 和JIS 4. 使用国际单位制的标准。每个系统中的测试方法并非完全等效。每个标准体系（ASTM、EN、ISO和JIS）应相互独立使用。合并任何两个或多个系统的要求可能会导致与采购订单不一致。 1.2 这些试验方法包括钢、不锈钢和相关合金的机械试验程序。 本文所述的各种机械试验用于确定产品规范中要求的性能。应避免试验方法的变化，并遵循标准试验方法，以获得可重复和可比较的结果。在某些产品的测试要求独特或与这些通用程序不一致的情况下，应以产品规范测试要求为准。 1.3 仅应遵循其中一个测试程序轨迹: ASTM、EN、ISO或JIS。当其中一条轨道上没有可用的测试方法或实践时，应使用替代轨道上的适当测试方法或实践。中所示的列中列出了相应的测试 表1 . 注1: 每个系统中的测试方法并非完全等效。 1.4 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.5 当可能需要有关测试实验室评估标准的信息时，请注意ISO 17025规程。 1.6 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。 1.7 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 These test methods cover mechanical tests described in ASTM, EN, 2 ISO, 3 and JIS 4 standards that utilize the SI system of units. The test methods in each system are not exact equivalents. Each standards system (ASTM, EN, ISO, and JIS) shall be used independently of the other. Combining requirements from any two or more systems may result in nonconformance with the purchase order. 1.2 These test methods cover procedures for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control. 1.3 Only one of the testing procedure tracks shall be followed: ASTM, EN, ISO, or JIS. When a test method or practice is not available in one of the tracks then an appropriate test method or practice from an alternative track shall be used. The respective tests are listed in the column shown in Table 1 . Note 1: The test methods in each system are not exact equivalents. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 Attention is directed to Practice ISO 17025 when there may be a need for information on criteria for evaluation of testing laboratories. 1.6 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. 1.7 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.