1, good combination property 2, high hardenability 3, less deformation under heat treatment 4, h13 hot die steel MOQ: 1MT impact resistant ... Special Steel Trading Co., Ltd.Hot work die steel1, Grade: H13/ SKD61/1.2344/ BH13/ 4Cr5MoSiV12, Chemical composition CSiMnPSCrMoV0.32~0.450.80 ... die, and hi-speed precision forging die etc.. impact resistant H13/ SKD61/1.2344/ BH13/ 4Cr5MoSiV1 steel material ...