| 摘要 |
<p>The present invention relates to a high-alloy spheroidal graphite cast iron having an austenitic structure comprising the following ingredients in the following percentages by weight: Chrome (Cr) ranging from 1,6% to 2,0%, Molybdenum (Mo) ranging from 0,9% to 1,1%, Niobium (Nb) ranging from 0,3% to 0,5%, Nickel (Ni) ranging from 34% to 36%, Silicon (Si) ranging from 6,1% to 6,7%, Carbon (C) ranging from 1,6% to 2,0%, Tungsten (W) ranging from 0,5% to 0,7%, Manganese (Mn) ranging from 0,5% to 0,65%; the present invention relates also to a structural component intended to operate in the temperature range of exhaust gases ranging from 920°C to 1020°C and particularly for exhaust manifolds, turbines and/or turbo manifolds for automotive industry.</p> |
