... heat treatment 4, h13 hot die steel MOQ: 1MT impact resistant flat die steel, h13 hot die steelDimension:Forging flat steel: ( ... ~305mm)Sichuan Liaofu Special Steel Trading Co., Ltd.Hot work die steel1, Grade: H13/ SKD61/1.2344/ BH13/ 4Cr5MoSiV12, ... : used for hammer forging die, die castings for aluminium alloy, hot-extrusion die, and hi-speed precision forging die etc.. impact resistant H13/ ...