ISO 9327-4-1999 压力用途的钢锻件和轧制或锻造的棒材 交货技术条件 第4部分:高强度可焊接细粒钢

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标准号:ISO 9327-4-1999
中文标准名称:压力用途的钢锻件和轧制或锻造的棒材 交货技术条件 第4部分:高强度可焊接细粒钢
英文标准名称:Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 4: Weldable fine grain steels with high proof strength
标准类型:H44
发布日期:1999/12/31 12:00:00
实施日期:1999/12/31 12:00:00
中国标准分类号:H44
国际标准分类号:77.140.30;77.140.60;77.140.85
适用范围: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. 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.

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