Study on Technical Properties of Low Yield Strength LY225 Steel Plate for Seismic

The effects of different rolling and normalization processes on the microstructure, grain size, and mechanical properties of steel plates were investigated using the design philosophy of low C and low Mn composition. The results demonstrate the high strength and toughness of the steel plate through the efficient use of properly controlled rolling. The steel plate obtained by normalizing at 920 °C has a uniform and fine internal microstructure and all mechanical properties fully meet the standard requirements. The steel plates obtained by this process, with moderate strength and toughness, meet the standard requirements and are capable of stable batch production.