1.1 本规范涵盖了用于制造雨水管、涵洞、排水沟和类似用途的波纹钢管的钢板。板材采用热浸工艺进行金属涂层。用于此用途的材料以线圈、扁平切割长度和波纹切割长度提供。本材料规范涵盖了许多金属涂层材料。用户必须确定哪种产品最能满足他们的需求。包括三种不同的金属涂层: 1.1.1 镀锌（镀锌）， 1.1.2 55 % 铝锌（55Al-Zn）合金涂层，以及 1.1.3 2型镀铝（2型镀铝）。 1.2 镀锌板有两种涂层重量[质量]。其他金属涂层仅以一种涂层重量[质量]提供。 1.3 以英寸磅单位或国际单位制表示的数值应单独视为标准。在正文中，国际单位制显示在括号中。每个系统中规定的值不是等价的；因此，每个系统都必须独立使用。将两个系统的值组合在一起可能会导致不符合规范。 1.4 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 steel sheet used in the manufacture of corrugated steel pipe for storm sewers, culverts, drains, and similar uses. The sheet is metallic coated by the hot-dip process. Material for this use is furnished in coils, flat in cut lengths, and corrugated in cut lengths. Many metallic coated materials are covered in this material specification. Users must determine which product best serves their needs. Three different metallic coatings are included: 1.1.1 Zinc-coated (galvanized), 1.1.2 55 % aluminum-zinc (55Al-Zn) alloy coated, and 1.1.3 Aluminum-coated Type 2 (aluminized Type 2). 1.2 Zinc-coated sheet is available in two coating weights [masses]. Other metallic coatings are available in one coating weight [mass] only. 1.3 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.4 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.