Ductile cast iron
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Detail
Nodular graphite cast iron is a kind of cast iron with nodular graphite obtained by spheroidization and inoculation treatment, and its mechanical properties have been effectively improved. The comprehensive performance of nodular cast iron is close to that of steel, with medium and high strength, medium toughness and plasticity, high comprehensive performance, good wear resistance and vibration reduction, and good casting process performance. Ductile iron can change its properties through various heat treatments, and can sometimes replace cast steel and forged steel in use, and is widely used in machinery manufacturing industry. Ductile iron parts are widely used in the industrial field, which requires high strength, plasticity, toughness, wear resistance, resistance to severe thermal and mechanical shock, high or low temperature resistance, corrosion resistance and dimensional stability. Compared with ordinary cast iron, nodular cast iron not only maintains the corrosion resistance of ordinary cast iron, but also has the advantages of high strength, good toughness, thin wall, light weight, impact resistance, large bending performance and easy installation. Therefore, nodular cast iron has been well promoted and used in China, and in many areas of our country, nodular cast iron has been widely used in medium and small caliber water pipes
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