IRON

摘要

FIELD: metallurgy. ^ SUBSTANCE: iron contains, wt %: carbon 3.64-0; silicon 2.8-3.2; yttrium 0.1-0.15; copper 0.15-0.25; cobalt 0.6-1.0; niobium 6.05-0.1; samarium 0.05-0.1; iron the rest. ^ EFFECT: iron possesses high heat resistance. ^ 1 tbl