| 摘要 |
PROBLEM TO BE SOLVED: To provide a spheroidal graphite cast iron having high strength and creep property at high temperature and capable of being used in high temperature environment.SOLUTION: The spheroidal graphite cast iron has a composition containing, by mass%, C:3.2 to 4.4%, Si:3 to 4.8%, Mn:0.1 to 0.8%, P:0.03 to 0.2%, Ni:0.3 to 3.0%, Mo:0.1 to 1.5%, Mg:0.02 to 0.1% and the balance Fe with inevitable impurities, so that the spheroidal graphite cast iron has high strength and creep property at high temperature. |
