| abstract |
This invention relates to metallurgy, namely, high-strength weldable stainless steel for the manufacture of high-loaded stainless steel welded structures. The purpose of the invention is to increase the strength of the metal and the welded joint while maintaining satisfactory ductility. The steel additionally contains vanadium, niobium, yttrium in the following ratio, wt.%: Carbon 0.03-0.09n n n 18-21 chromen n n manganese 12-16n n n nickel 7-9n n n nitrogen 0.50-0.70n n n molybdenum 1.1-1.5n n n boron 0,003-0,006n n n vanadium 0.2-2.0n n n niobium 0.1-0.3n n n yttrium 0,005-0,05n n n iron - the rest. 2 tab. |