STEEL FOR MOLDS Russian patent published in 2023 - IPC C22C38/46 C22C38/44 

FIELD: metallurgy.

SUBSTANCE: invention relates to the steel compositions that can be used for the manufacture of equipment parts and products operating under difficult conditions and alternating loads, in particular for moulds. The steel comprises components in the following ratio, wt.%: carbon 1.40-1.60, silicon 0.20-0.40, manganese 0.50-0.70, chromium 1.80-2.20, nickel 0, 30-0.40, molybdenum 0.30-0.50, vanadium 0.10-0.20, sulphur up to 0.01, phosphorus up to 0.025, barium 0.03-0.05, strontium 0.01-0, 03, the rest is iron.

EFFECT: increased operational characteristics of moulds due to increase and levelling of hardness value and improvement of wear resistance under thermal and mechanical loads.

1 cl, 1 tbl, 1 ex