1.1 这些试验方法包括确定钢淬透性的试验方法的识别和描述。这两种试验方法包括定量末端淬火或Jominy试验，以及根据M.a.Grossman的原始工作从化学成分计算钢淬透性的方法。 1.2 供应商和用户应就用于确定给定钢材淬透性的试验方法的选择达成一致。经认证的材料试验报告应说明淬透性测定方法。 1.3 这些试验方法中描述的计算方法仅适用于以下化学成分范围: 要素 范围，% 碳 0.10–0.70 锰 0.50–1.65 硅 0.15–0.60 镍 最大1.50 铬 最大1.35 钼 最大0.55 铜 最大0.35 钒 最大0.20 1.4 淬透性是衡量钢从奥氏体化温度淬火时淬透深度的指标( 表1 ). 通常通过在标准淬火中记录标准尺寸和形状试样的硬化程度或深度来定量测量。 在端淬试验中，硬化深度是沿着试样与淬火端之间的距离，该距离与给定的硬度水平相关。 1.5 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 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。 ====意义和用途====== 3.1 本试验方法涵盖了通过端淬或Jominy试验测定钢淬透性的程序。该试验包括对圆柱形试样1的一端进行水淬火。 0英寸。测量淬火响应，作为距淬火端距离的函数。

1.1 These test methods cover the identification and description of test methods for determining the hardenability of steels. The two test methods include the quantitative end-quench or Jominy Test and a method for calculating the hardenability of steel from the chemical composition based on the original work by M. A. Grossman. 1.2 The selection of the test method to be used for determining the hardenability of a given steel shall be agreed upon between the supplier and user. The Certified Material Test Report shall state the method of hardenability determination. 1.3 The calculation method described in these test methods is applicable only to the range of chemical compositions that follow: Element Range, % Carbon 0.10–0.70 Manganese 0.50–1.65 Silicon 0.15–0.60 Nickel 1.50 max Chromium 1.35 max Molybdenum 0.55 max Copper 0.35 max Vanadium 0.20 max 1.4 Hardenability is a measure of the depth to which steel will harden when quenched from its austenitizing temperature ( Table 1 ). It is measured quantitatively, usually by noting the extent or depth of hardening of a standard size and shape of test specimen in a standardized quench. In the end-quench test the depth of hardening is the distance along the specimen from the quenched end which correlates to a given hardness level. 1.5 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. 1.6 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. ====== Significance And Use ====== 3.1 This test method covers the procedure for determining the hardenability of steel by the end-quench or Jominy test. The test consists of water quenching one end of a cylindrical test specimen 1.0 in. in diameter and measuring the hardening response as a function of the distance from the quenched end.