1.1 本规范涵盖了热轧厚钢板和带钢卷的一般要求。 1.2 它适用于规范 A414/A414M型 , A424/A424M型 , A1018/A1018M型 和 A1031/A1031M型 . 1.3 该材料仅适用于以下描述的线圈: 尺寸限制，仅线圈 产品 宽度，英寸。[毫米] 厚度，英寸。[毫米] 带 8至12（含） 【超过200至300】 0.230至1.000（含） [从6.0到25] 床单 所有宽度 A. 所有宽度 0.230至1.000（含） [从6.0到25] 注1: 随着 A635/A635M型 – 06a导致材料拉伸试验方向从0.180英寸改变。[4.5毫米]至0.230英寸。不包括[6.0 mm不包括]超过48英寸。[1200 mm]宽，因为该材料现已包含在规范中 A568/A568M型 – 06年a月。建议买方与供应商讨论此变更。 1.4 如果要求有任何冲突，应以单个材料规范的要求为准，而不是本通用规范的要求。 1.5 为了确定是否符合本规范以及 1.2 测量值、计算值和观察值应四舍五入至根据实践四舍五位法表示极限值时所用数字右侧的最接近单位 第29页 . 1.5.1 表中确定的有序值，如超过30到48，或30到48（不包括48），涵盖了指定为30.1、30.01、30.001等的所有有序值，最多包括48.000等，但不涵盖指定为30.000等或更少的有序值。 1、48.01、48.001等，按照实践的绝对方法 第29页 . 1.6 附录A1 列出了尺寸和质量的允许偏差（参见 附注2 )单位为SI[公制]。所列数值不是英寸-磅表中所列数值的精确转换，而是四舍五入或合理化的数值。符合 附录A1 在使用“M”规范时是强制性的。 注2: 术语 重量 标准单位为英寸-磅时使用。然而，根据SI，首选术语是 大量 . 1.7 以国际单位或英寸-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可能不完全相等；因此，每个系统应独立于其他系统使用。结合两个系统的值可能会导致不符合标准。 1.8 本规范和适用材料规范均以英寸-磅单位和国际单位表示。但是，除非订单规定了适用的“M”规格名称（国际单位制），否则材料应以英寸-磅为单位。 1.9 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 This specification covers the general requirements for hot-rolled, heavy-thickness sheet and strip in coils. 1.2 It applies to Specifications A414/A414M , A424/A424M , A1018/A1018M , and A1031/A1031M . 1.3 This material is available only in coils described as follows: Size Limits, Coils Only Product Width, in. [mm] Thickness, in. [mm] Strip over 8 to 12, incl [over 200 through 300] 0.230 to 1.000, incl [from 6.0 through 25] Sheet All Widths A All Widths 0.230 to 1.000, incl [from 6.0 through 25] Note 1: The changes in width limits with the publication of A635/A635M – 06a result in a change in tensile testing direction for material from 0.180 in. [4.5 mm] to 0.230 in. exclusive [6.0 mm exclusive] over 48 in. [1200 mm] wide, as that material is now covered by Specification A568/A568M – 06a. The purchaser is advised to discuss this change with the supplier. 1.4 In case of any conflict in requirements, the requirements of the individual material specification shall prevail over those of this general specification. 1.5 For the purposes of determining conformance with this and the appropriate product specifications referenced in 1.2 , measured values, calculated values, and observed values shall be rounded to the nearest unit in the right hand place of figures used in expressing the limiting values in accordance with the rounding method of Practice E29 . 1.5.1 Ordered values, identified in tables, specified such as over 30 through 48, or 30 exclusive to 48 inclusive, covers all ordered values specified as 30.1, 30.01, 30.001, etc., up to and including 48.000 etc., but does not cover ordered values specified as 30.000 etc. or less, nor does it cover ordered values specified as 48.1, 48.01, 48.001, etc., in accordance with the absolute method of Practice E29 . 1.6 Annex A1 lists permissible variations in dimensions and mass (see Note 2 ) in SI [metric] units. The values listed are not exact conversions of the values listed in the inch-pound tables, but instead are rounded or rationalized values. Conformance to Annex A1 is mandatory when the “M” specification is used. Note 2: The term weight is used when inch-pound units are the standard. However, under SI, the preferred term is mass . 1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.8 This specification and the applicable material specifications are expressed in both inch-pound units and SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units. 1.9 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.