标准摘要
[中文适用范围]: ISO 9327 的本部分适用于由表 1 中给出的细晶粒钢(见注释)制造的厚度不超过 250 mm 的锻件和轧制或锻造棒材,并根据 ISO 9327-1 中给出的规范进行交付。 这些钢分为 — 室温等级 (P...)。 — 高温等级 (PH...), — 低温等级 (PL...), — 低温和高温等级 (PLH...)。 注:根据 ISO 643 中的晶粒尺寸表,细晶粒钢在此被理解为晶粒尺寸为 6 或更细的钢。 2 ISO 9327 的本部分涵盖以下数据: a) 在表 1 中,化学成分的限值根据演员阵容分析; ——室温拉伸性能; ——交货时通常热处理条件的说明; b) 表 2 中给出的铸造分析极限值的允许产品分析公差; c) 表3中的最小冲击能量值; d) 表4中的最小高温保证强度值。 [外文原描述]: 1.1 This part of ISO 9327 applies to forgings and rolled or forged bars in thicknesses up to 250 mm manufactured from fine grain steels (see NOTE) given in Table 1 and to be delivered according to the specifications given in ISO 9327-1. The steels are classified into room temperature grades (P...), elevated temperature grades (PH...), low temperature grades (PL...), low and elevated temperature grades (PLH...). NOTE Fine grain steels are here understood as steels with grain size 6 or finer according to the grain size charts in ISO 643. 1.2 This part of ISO 9327 covers the following data: a) In Table 1 the limits for the chemical composition according to the cast analysis; the tensile properties at room temperature; the indications on the usual heat treatment condition at the time of delivery; b) in Table 2 the permissible product analysis tolerances on the limiting values given for the cast analysis; c) in Table 3 the minimum impact energy values; d) in Table 4 the minimum elevated temperature proof strength values.
英文名称Steel forgings and rolled or forged bars for pressure purposes — Technical delivery conditions — Part 4: Weldable fine grain steels with high proof strength