用于波纹钢管的连续热镀金属涂层钢板

[中文适用范围]： 本文件适用于制造波纹钢管、卷材、平切长度和通过连续热浸镀金属涂层的波纹切割长度的钢板的最低要求。 该产品适用于雨水管道、涵洞、排水沟和类似用途。 其中涵盖了多种金属涂层材料，这取决于用户来确定哪种产品最能满足他们的需求。 包括四种不同的金属涂层： ——镀锌； ——锌-5%铝混合稀土合金涂层； ——55%铝锌合金涂层； ——铝硅合金涂层。 [外文原描述]： This document is applicable to the minimum requirements for steel sheet used in the manufacture of corrugated steel pipe, in coils, flat cut lengths and corrugated cut lengths metallic-coated by the continuous hot-dip process. This product is intended for storm sewers, culverts, drains and similar uses. Several metallic-coated materials are covered, which relies on users to determine which product best serves their needs. Four different metallic coatings are included: — zinc coated; — zinc-5 % aluminium-mischmetal alloy coated; — 55 % aluminium-zinc alloy coated; — aluminium-silicon alloy coated.