Impact and wear resistant component, and method for producing the same

A method for producing an impact and wear resistant component, comprising the steps of:

• preparing a steel material made of a steel containing not less than 0.41 mass % and not more than 0.44 mass % C, not less than 0.2 mass % and not more than 0.5 mass % Si, not less than 0.2 mass % and not more than 1.5 mass % Mn, not less than 0.0005 mass % and not more than 0.0050 mass % S, not less than 0.6 mass % and not more than 2.0 mass % Ni, not less than 0.7 mass % and not more than 1.5 mass % Cr, not less than 0.1 mass % and not more than 0.6 mass % Mo, not less than 0.02 mass % and not more than 0.03 mass % Nb, not less than 0.01 mass % and not more than 0.04 mass % Ti, not less than 0.0005 mass % and not more than 0.0030 mass % B, and not less than 20 mass ppm and not more than 60 mass ppm N, with the balance consisting of iron and unavoidable impurities;
• hot forging or hot rolling the steel material to obtain a formed body;
• performing normalizing treatment on an entirety of the formed body by cooling the formed body from a temperature not lower than 945° C. and not higher than 1000° C. to a temperature not higher than a temperature corresponding to the Ms point of the steel;
• and
• performing quench hardening treatment on the formed body having undergone the normalizing treatment and, thereafter, adjusting a hardness of the formed body to be HRC 53 or more and HRC 57 or less by heating the formed body to a temperature not lower than 150° C. and not higher than 250° C.