Strength of HSLA Steels: 3 Important Factors | Metallurgy
The main factors responsible for increased strength in HSLA steels are given below: Factor # 1. Grain-Size Refinement: The very fine ferrite grain sizes in HSLA steels are possible by the control of austenite grain size by the precipitation of carbonitrides during hot rolling as the temperature of the steel falls. These fine precipitate particles hinder the growth of austenite [...]