A STEEL FOR A LEAD COOLED REACTOR

摘要

A steel for structural components used in contact with liquid lead in nuclear reactors consisting of in weight % (wt. %): Cr 8.0-15.0 Ni 10.0-16.0 Al 2.0-4.0 C 0.02-0.2 N <0.06 Mo <3.0 at least one of: Nb 0.1-3.0 Ta 0.1-3.0 Ti 0.01-1.0 ZrO.01-1.0 Hf 0.01-1.0 Y 0.05-1.0 optionally Si <2.0 Mn <4.0 Cu <4 Co <5 V<1 W<3 B <0.1 Bi <0.2 Se <0.3 Ca <0.01 Mg <0.01 O 0.02-0.50 REM <0.3 balance Fe apart from impurities, wherein the content of REM does not include the amount of Y but only the amount of the elements having an atomic numbers 21 and 57-71.