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由于球铸扩大了生产,且这种铸铁具有与钢相似的强度特性,所以现代柴油机的机体和其他一些大型件越来越多地向着球铁结构过渡。如法国Chantiers de l’ Atlantigue和Montoir de Bretagne柴油机制造公司同西德Buderus Eisenwerke铸铁公司一起为法国S.E.M.T Pielstick公司的PA4V185系列柴油机拟定了用SFP500号球铁铸造整体机体结构以取代焊接结构。这种铸铁的抗拉强度极限为500牛顿/毫米~2,屈服极限为350牛顿/毫米~2,延伸率大于7％,硬度HB170—240。在遵守铸造工艺要求的情况下,壁厚减到10～12
As ball casting expands production and the cast iron has similar strength characteristics to steel, the body of modern diesel engines and other large parts are increasingly transitioning towards ductile iron structures. For example, France’s Chantiers de l’Atlantigue and Montoir de Bretagne Diesel Engines, together with the Buderus Eisenwerke Casting Company in West Germany, worked out the entire body structure of the PA4V185 diesel engine from S.E.M.T. Pielstick to replace the welded structure with SFP500 ductile iron. This cast iron has a tensile strength limit of 500 N / mm2, a yield point of 350 N / mm2, an elongation of more than 7% and a hardness of HB170-240. In compliance with the requirements of the casting process, the wall thickness reduced to 10 to 12