HIGH STRENGTH STEEL WITH INCREASED E-MODULUS AND METHOD FOR PRODUCING SAID STEEL

摘要

The invention relates to a high strength steel with a increased E-modulus and to a method for producing said steel wherein the steel comprises in wt.% : - 0.002 <= C < 0.24 - 0.050 <= Mn < 1.5 - 0.5 <= B < 4.0 - 2.0 <=Cr < 20 - 0 <= Si < 0.4 - 0 <= Al < 0.1 - 0 <= S < 0.030 - 0 <= P < 0.040 - 0 <= Ni < 1.0 - 0 <= Cu < 1.0 - 0 <= N < 0.04 - 0 <= Mo < 0.4 - 0 <= Nb < 0.1 - balance iron and unavoidable impurities resulting from production, wherein the structure of the steel comprises at least 5 wt% of∑((Fe,Cr)2B and Fe2B) as precipitates.