Steel forgings and rolled or forged bars for pressure purposes — Technical delivery conditions — Part 2: Non-alloy and alloy (Mo, Cr and CrMo) steels with specified elevated temperature properties
压力用钢锻件和轧制或锻造棒材——技术交付条件第2部分:具有规定高温性能的非合金和合金(Mo、Cr和CrMo)钢
发布日期:
1999-07-08
1.1 ISO 9327的这一部分适用于厚度不超过250毫米(部分不超过250毫米)的锻件和轧制或锻造棒材
500 mm)由表1中列出的钢制造,并根据中给出的规格交付
ISO 9327-1。
1.2 ISO 9327的这一部分涵盖以下数据:
a)在表1中,
根据铸件分析的化学成分;
室温下的拉伸性能;
冲击特性;
交货时通常热处理条件的指示;
b)在表2中,对于铸造分析给出的极限值,允许的产品分析公差;
c)表3中的最小高温强度值(参见ISO 9327-1:19 98的C.4);
d)在表4中,估计的平均应力破裂性质;
e)在表5中,1%塑性应变的估计平均强度值。
1.1 This part of ISO 9327 applies to forgings and rolled or forged bars in thicknesses up to 250 mm (partly up to
500 mm) manufactured from the steels listed in Table 1 and to be delivered according to the specifications given in
ISO 9327-1.
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 impact properties;
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 elevated temperature proof strength values (see C.4 of ISO 9327-1:1998);
d) in Table 4 the estimated average stress rupture properties;
e) in Table 5 the estimated average strength values for 1 % plastic strain.