1.1 本规范涵盖了混凝土钢筋的异形和普通低碳铬钢筋、切割长度和线圈。根据铬含量范围，这些棒材有三种合金类型。变形钢筋的标准尺寸和规格及其编号名称见 表1 . 2. 1.2 钢筋具有两个最低屈服强度水平，如 9.2 :即100 000 psi[690 MPa]和120 000 psi[830 MPa]分别指定为100级[690]和120级[830]。 1.3 棒材具有三种不同的化学成分，分别指定为合金类型CL、CM和CS。化学成分如所示 表2 . 1.4 尺寸不超过2.25英寸[57.2毫米]2的普通钢筋 1. / 2. 订购时，直径为[63.5 mm]的线圈和切割长度应按照本规范提供100[690]级和120[830]级。对于延性性能（伸长率和弯曲），应适用最接近的较小标称直径变形钢筋尺寸的试验规定。规定变形和标记的要求不适用。 注1: 本规范中的材料焊接应谨慎进行，因为没有包含提高其可焊性的具体规定。当焊接这种钢时，应使用适合化学成分和预期用途或服务的焊接工艺。 注2: 设计师需要意识到，设计规范和规格可能无法识别20号[64]钢筋的使用，这是本规范中包含的最大钢筋尺寸。用20[64]号钢筋加固的结构构件可能需要建筑官员或其他有关当局的批准，并需要特殊的细节，以确保在使用和系数载荷下具有足够的性能。 1.5 替代钢筋尺寸的要求见 附件A1 .中的要求 附件A1 仅在买方指定时适用（见 4.2.4 ). 1.6 提供了一项补充要求（S1），用于对编号为14和18[43，57]的钢筋以及编号为。 40、50和60英寸 附件A1 ，是买方要求的。补充要求仅适用于采购订单中规定的情况。 1.7 本规范的文本引用了提供解释性材料的注释和脚注。这些注释和脚注（不包括表格和图中的注释和脚注）不应被视为规范的要求。 1.8 本规范适用于英寸-磅单位（如规范A1035）或国际单位制（如规范A10 35M）的订单。 1.9 以英寸-磅单位或国际单位表示的值应单独视为标准值。在文本中，国际单位制显示在括号中。 每个系统中所述的值可能不是完全等效的；因此，每个系统都应独立使用。结合两个系统的值可能会导致不符合规范。 1.10 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《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 covers deformed and plain low-carbon, chromium, steel bars, in cut lengths and coils for concrete reinforcement. These bars are furnished in three alloy types depending on the chromium range content. The standard sizes and dimensions of deformed bars and their number designations are given in Table 1 . 2 1.2 Bars are of two minimum yield strength levels as defined in 9.2 : namely, 100 000 psi [690 MPa], and 120 000 psi [830 MPa] designated as Grade 100 [690] and Grade 120 [830], respectively. 1.3 Bars are furnished to three different chemical compositions, designated as Alloy Type CL, CM, and CS. Chemical compositions are shown in Table 2 . 1.4 Plain bars, in sizes up to and including 2.25 in. [57.2 mm] 2 1 / 2 in. [63.5 mm] in diameter in coils and cut lengths, when ordered shall be furnished under this specification in Grade 100 [690] and Grade 120 [830]. For ductility properties (elongation and bending), test provisions of the nearest smaller nominal diameter deformed bar size shall apply. Requirements providing for deformations and marking shall not be applicable. Note 1: Welding of the material in this specification should be approached with caution since no specific provisions have been included to enhance its weldability. When this steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service should be used. Note 2: Designers need to be aware that design codes and specifications may not recognize the use of the No. 20 [64] bar, the largest bar size included in this specification. Structural members reinforced with No. 20 [64] bars may require approval of the building official or other appropriate authority and require special detailing to ensure adequate performance at service and factored loads. 1.5 Requirements for alternate bar sizes are presented in Annex A1 . The requirements in Annex A1 only apply when specified by the purchaser (see 4.2.4 ). 1.6 A supplementary requirement (S1) is provided for use where bend testing of bar designation Nos. 14 and 18 [43, 57], and bar designation Nos. 40, 50, and 60 in Annex A1 , is required by the purchaser. The supplementary requirement applies only when specified in the purchase order. 1.7 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification. 1.8 This specification is applicable for orders in either inch-pound units (as Specification A1035) or in SI units (as Specification A1035M). 1.9 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. 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 specification. 1.10 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.