1.1 这种做法 2. 涵盖测试和检查，适用于经过自耗电极重熔的碳素钢、合金钢和不锈钢棒材、钢坯和大方坯。 1.2 出于本实施规程的目的，自耗电极重熔工艺被定义为一种钢精炼方法，其中单个或多个电极被重熔到坩埚中，通过提高清洁度或降低气体含量或减少化学或非金属偏析，产生优于原始电极的锭。看见 附录X1 和 附录X2 有关适用重熔工艺的说明。 1.3 本实践和伴随的比较宏图形 3. 通常适用于225英寸以下的钢筋和钢坯。 2. [1450厘米 2. ]在横截面上。 1.4 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。 1.5 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。 1.6 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====== 4.1 如本文所述，宏观浸蚀试验是一种检查和评定棒材和坯料横截面的方法，以描述某些宏观偏析条件，这些条件通常是自耗电极重熔材料的特征。 4.2 本规程无意定义主要缺陷，如方法所述的缺陷 E381 .

1.1 This practice 2 covers testing and inspection and is applicable to bars, billets, and blooms of carbon, alloy, and stainless steel which have been consumable electrode remelted. 1.2 For the purpose of this practice, the consumable electrode remelting process is defined as a steel refining method wherein single or multiple electrodes are remelted into a crucible producing an ingot which is superior to the original electrode by virtue of improved cleanliness or lower gas content or reduced chemical or nonmetallic segregation. See Appendix X1 and Appendix X2 for descriptions of applicable remelting processes. 1.3 This practice and the accompanying comparison macrographs 3 are generally applicable to steel bar and billet sizes up to 225 in. 2 [1450 cm 2 ] in transverse cross section. 1.4 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. 1.5 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. 1.6 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 ====== 4.1 Macroetch testing, as described herein, is a method for examining and rating transverse sections of bars and billets to describe certain conditions of macro segregation which are often characteristic of consumable electrode remelted materials. 4.2 This practice is not intended to define major defects such as those described by Method E381 .