1.一種雙向復合沖擊板,其特征在于,包括相結(jié)合的鋼板和鐵板,
所述鐵板的化學成分按質(zhì)量百分數(shù)為C:2.5%~3.0%,Si:0.15%~0.45%,Mn:1.15%~1.65%,P≤0.025%,S≤0.008%,Nb≤0.04%,V≤0.20%,Ti≤0.015%,Al:0.005%~0.030%,N≤0.020%,O:0.002%~0.003%,其余量為Fe;
所述鋼板的化學成分按質(zhì)量百分數(shù)為C:1.2%~1.4%,Si:0.15%~0.45%,Mn:1.15%~1.65%,P≤0.025%,S≤0.008%,Nb≤0.04%,N≤0.020%,O:0.002%~0.003%,其余量為Fe。