连续热轧钢板的结构质量 具有改善的耐大气腐蚀性

[中文适用范围]： 本标准规定了耐大气腐蚀结构用热轧钢板（又称耐候结构钢）的要求。 它按表 1 中列出的牌号和类别生产。 该产品适用于需要机械性能和增强耐大气腐蚀能力的应用。 它通常在交付状态下使用，适用于螺栓、铆接或焊接结构。 本文件不适用于以下钢材质量： ——用于锅炉和压力容器的钢材，以及指定为商业质量和拉拔质量的钢材（见 ISO 3573）； ——可逆式轧机生产的钢，具有改进的耐大气腐蚀性能（见 ISO 630-5）； ——具有结构质量（见 ISO 4995）和高屈服强度结构质量（见 ISO 4996）的钢材； ——指定具有更高屈服强度和改善可成形性的钢材（参见 ISO 5951）。 [外文原描述]： This document specifies requirements for steel sheet hot-rolled of structural quality with improved atmospheric corrosion resistance, also known as weather-resistant structural steel. It is produced in the grades and classes listed in Table 1. The product is intended for applications where requirements are for mechanical properties and increased resistance to atmospheric corrosion. It is generally used in the delivered condition and is intended for bolted, riveted or welded structures. This document does not apply to the following steel qualities: — steels intended for boilers and pressure vessels, and steels designated as commercial quality and drawing qualities (see ISO 3573); — steels produced on reversing mills and designated with improved atmospheric corrosion resistance (see ISO 630-5); — steels designated with structural quality (see ISO 4995), and high yield strength structural quality (see ISO 4996); — steels designated with higher yield strength with improved formability (see ISO 5951).