The invention provides a nodular
cast iron used for an air conditioner compressor cylinder. The nodular
cast iron comprises, by weight percent, C, Si, Mn, P, S, Cu, Mg, Ti, Sr, Zr, Cr, B, V, Zn, Re, Sn, Pb, Be, Sc, Li, Ni, La and the balance iron, wherein the sum of the weight percent of all components is 100%; and the nodular
cast iron comprises multiple
nonmetal elements,
metal elements and
transition metal elements, the elements are added and matched, oxidization resistance,
corrosion resistance, abrasion resistance and compressing and vibration resistance of the air conditioner compressor cylinder are improved, and accordingly, the service life of the air conditioner compressor cylinder under the poor working condition is prolonged.