FIELD: metallurgy.
SUBSTANCE: steel contains components in wt %: 0.32-0.42 C, max. 0.35 Si, 1.4-1.8 Mn, max. 0.04 P, 0.08-0.4 S, max. 0.03 Al, 0.03-0.12 Bi, 0.002-0.020 O, Fe and admixture - rest. Steel has uniformly distributed lightly deformed sulfide inclusions of ellipsoidal shape of 2.1-2.2 points.
EFFECT: manufactured steel has increased strength and increased cutability.
6 dwg, 2 tbl
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Authors
Dates
2015-03-20—Published
2014-03-06—Filed