本欧洲标准规定了用于铸造的非合金和低合金灰铸铁的性能，这些铸铁在砂模或具有相当热性能的模具中制造。 本欧洲标准规定了灰铸铁的特性 a）铸件的拉伸强度，或 b）在铸件或铸造旋钮上测量的硬度。 如果制造商和买方同意，可以规定选项a）的拉伸强度与选项b）的硬度的组合。 该欧洲标准通过基于通过基于布氏硬度的分类（参见表2）由铸造样品（见表1）和六级灰铸铁制备的加工试样测量的基于拉伸强度的分类来规定六级灰铸铁。 本欧洲标准不包括铁铸件的技术交付条件;见EN 1559-1 [3]和 EN 1559-3 [4]。 本欧洲标准不适用于根据EN 877 [5]的用于管道和配件的灰口铸铁

This European Standard specifies the properties of unalloyed and low-alloyed grey cast irons used for castings, which have been manufactured in sand moulds or in moulds with comparable thermal behaviour. This European Standard specifies the characterizing properties of grey cast irons by either a) the tensile strength of cast samples, or b) the hardness measured on the castings or on a cast-on knob. If agreed by the manufacturer and the purchaser, the combination of both tensile strength from option a) and hardness from option b) may be specified. This European Standard specifies six grades of grey cast iron by a classification based on tensile strength measured on machined test pieces prepared from cast samples (see Table 1) and six grades of grey cast iron by a classification based on Brinell hardness (see Table 2). This European Standard does not cover technical delivery conditions for iron castings; see EN 1559-1 [3] and EN 1559-3 [4]. This European Standard does not apply to grey cast irons used for pipes and fittings according to EN 877 [5].