In this paper the mechnical properties of two types of cast iron are compared and the producing process of the railway castings of as-cast nodular iron are described.

• 本文对比了两种铸铁的机械性能，叙述了铸态球墨铸铁铁路配件的生产，分析了球化处理、孕育处理对配件质量的影响。