STAINLESS STEEL Russian patent published in 2008 - IPC C22C38/58 

FIELD: ferrous metallurgy; chemical industry; other industries; production of the stainless steel used for manufacture of the details of the chemical apparatuses, tanks, pipes.

SUBSTANCE: the invention presents the stainless steel intended for manufacture of the details of the chemical apparatuses, tanks, pipes. The stainless steel has the following composition (in mass %): carbon - 0.08-0.12, silicon - 0.08-0.12, manganese - 10.0-12.0, chromium - 20.0-22.0, nickel - 10.0-12.0, nitrogen - 0.08-0.12, molybdenum - 3.0-4.0, vanadium - 0.5-1.0, niobium - 0.3-0.8, yttrium - 0.03-0.08, titanium - 0.1-0.2, zirconium - 0.2-0.4, calcium - 0.003-0.008, boron - 0.08-.,12, iron - the rest. The invention allows to increase the strength of the steel.

EFFECT: the invention ensures the increased strength of the stainless steel.

1 tbl