FIELD: metallurgy.
SUBSTANCE: steel contains the following, wt %: 0.38 - 0.46 C, 0.5 -1.0 Si, 1 < Mn ≤ 1.8, 0.7 - 3.0 Cr, 0.5 - 0.7 Mo, 0.45 - 0.7 V, not more than 0.05 or 0.3 - 1.0 Al, iron and inevitable impurities are the rest. Total content of molybdenum and chrome is less than 3.5 wt %, and ratio of chrome content to molybdenum content is Cr/Mo > 3.
EFFECT: wear resistance and heat conductivity are improved at cost reduction.
10 cl, 2 dwg, 3 tbl
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