FIELD: metallurgy.
SUBSTANCE: steel contains carbon, chromium, nickel, titanium, molybdenum, aluminium and iron at following ratio of components, wt %: chromium 10.0-12.5, nickel 22.0-24.0, titanium 2.7-3.1, molybdenum 1.0-1.6, aluminium not more, than 0.8, carbon 0.03-0.07, iron - the rest.
EFFECT: steel possesses higher resistance to cracking under stress in hydrogen sulphide mediums and stable mechanical properties.
6 tbl, 1 ex
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Authors
Dates
2011-04-10—Published
2009-01-11—Filed