This paper carries out controlled rolling and controlled cooling test by means of adding microalloy element V to Q345D steel.
本文通过对Q 3 4 5d钢加入微量合金元素V并进行控轧控冷试验。
New microalloy non-quenched-tempered steel was studied.
研制了一种新型微合金非调质钢。
The results show that producing HRB400 reinforced bar can substitute low alloy for conventional V microalloy process by composition adjusting and rational cooling control after rolling.