If the steel plate is supplied in a hot-rolled state, it has not undergone heat treatment

Hot rolling includes traditional rolling and controlled rolling and controlled cooling. Traditional rolling is air-cooled after rolling, and rolling Higher temperature

Controlled rolling and controlled cooling generally have a low final rolling temperature, water cooling after rolling, and control the cooling rate and cooling rate temperature

If you see a hot-rolled steel structure similar to the quenched state It should be water-cooled after hot rolling, and the final cooling temperature is lower