| abstract |
An object of the present invention is to provide a spheroidal graphite cast iron having superior high temperature strength and oxidation resistance at a temperature exceeding 800 ° C. as compared with conventional high SiMo spheroidal graphite cast iron. SOLUTION: Carbon: 2.0-4.0% by mass, silicon: 3.5-5.0%, manganese: 1.0% or less, chromium: 0.1-1.0%, molybdenum: Spheroidal graphite cast iron containing 0.2-2.0%, vanadium: 0.1-1.0%, magnesium: 0.02-0.1%, the balance being composed of iron and inevitable impurities. [Selection figure] None |